Mike Yastrzemski

Michael Andrew Yastrzemski Bio

Michael Andrew Yastrzemski, nicknamed “Yaz”, is an American professional baseball outfielder for the Atlanta Braves of Major League Baseball (MLB). Born on August 23, 1990, in Andover, Massachusetts, he has built a notable career across three MLB franchises while carrying the weight of a legendary family legacy. Yastrzemski is perhaps most widely recognized as the grandson of Baseball Hall of Famer Carl Yastrzemski, who spent 23 seasons with the Boston Red Sox. After developing his skills in the minor leagues following his college career at Vanderbilt University, Yastrzemski made his MLB debut with the San Francisco Giants in 2019 and has since established himself as a consistent power hitter with strong defensive capabilities in the outfield.

Early Life and Background

Yastrzemski grew up in Andover, Massachusetts, where he attended St. John’s Preparatory School. He played for the school’s baseball team and served as team captain during his senior year, demonstrating leadership qualities that would define his career. His baseball pedigree extended beyond his famous grandfather, as his father, Carl Yastrzemski Jr., played college baseball for the Florida State Seminoles and was drafted by the Atlanta Braves in the third round of the 1984 MLB January Draft-Secondary Phase. Carl Jr. played professionally in the minor leagues from 1984 to 1988 before tragically dying in 2004 at the age of 43 from a blood clot following hip surgery. Yastrzemski’s parents divorced when he was six years old, and his mother Anne-Marie raised him alongside extended family.

Despite being seen as a potential early-round selection in the 2009 MLB draft, Yastrzemski indicated he would attend college unless chosen in the first round. The Boston Red Sox selected him in the 36th round (1,098th overall) that year, but he did not sign with the team. Instead, he enrolled at Vanderbilt University to play for the Commodores baseball program, honoring his commitment to pursue higher education while continuing his baseball development.

Path to Professional Baseball

Yastrzemski became a starter for the Vanderbilt Commodores in the middle of his freshman year, quickly adapting to the competitive collegiate level. During his time at Vanderbilt, he played collegiate summer baseball with the Cotuit Kettleers of the Cape Cod Baseball League in both 2010 and 2011, which further honed his skills against top college talent from across the country. After his junior year, the Seattle Mariners selected him in the 30th round (911th overall) of the 2012 MLB draft. The Mariners offered Yastrzemski a $300,000 signing bonus, well above the suggested amount for that draft round, but he chose not to sign and returned to Vanderbilt for his senior year. As a senior, Yastrzemski earned All-Southeastern Conference honors, solidifying his reputation as one of the top collegiate players in the country.

The Baltimore Orioles ultimately selected Yastrzemski in the 14th round (429th overall) of the 2013 MLB draft, and he signed to begin his professional career. This selection marked the beginning of his journey through the Orioles’ minor league system, where he would spend the next several years developing before earning his opportunity at the major league level.

Michael Andrew Yastrzemski Career

Baltimore Orioles Minor League System (2013–2018)

After signing with the Orioles in 2013, Yastrzemski began his professional career with the Aberdeen IronBirds of the Low-A New York-Penn League. He made an immediate impact, posting a .273 batting average with three home runs and 25 runs batted in (RBI). His performance earned him NY-P mid-season All-Star honors and a selection to the all-star game. The following season, Yastrzemski started with the Delmarva Shorebirds of the Single-A South Atlantic League, where he led the entire league with 10 triples while batting .306/.365/.554. He was promoted to the Frederick Keys of the High-A Carolina League mid-season, where he continued his strong play with a .312 average in 93 at-bats. He finished the 2014 season with a combined total of 18 triples across two levels, leading all of Minor League Baseball in that category.

Yastrzemski continued his ascent through the Orioles’ system, spending the 2015 season with the Bowie Baysox of the Double-A Eastern League, where he earned Eastern League All-Star honors. He played parts of 2016 with both Bowie and the Norfolk Tides of Triple-A, combining to hit .234 with 13 home runs and 59 RBI. Following the 2016 season, Yastrzemski underwent surgery and faced a challenging recovery that affected his 2017 season. He spent most of 2017 and 2018 with Norfolk at the Triple-A level, continuing to refine his game while awaiting his MLB opportunity.

San Francisco Giants Breakthrough (2019–2025)

On March 22, 2019, the Orioles traded Yastrzemski to the San Francisco Giants in exchange for minor league pitcher Tyler Herb. The Giants assigned him to the Sacramento River Cats of Triple-A to begin the season, where he excelled with a .316/.414/.676 batting line, 12 home runs, and 25 RBI in a brief 136 at-bat sample. His performance forced the Giants’ hand, and they promoted him to the Major Leagues on May 25, 2019.

Yastrzemski made his MLB debut that same day, going 0-for-3 with a run scored in a 10-4 loss to the Arizona Diamondbacks. He collected his first career hit the following day and then hit his first career home run against his former organization, the Baltimore Orioles, on May 31. A particularly memorable moment came on September 17, 2019, when Yastrzemski hit his 20th home run in his first game at Fenway Park, where his grandfather had built his legendary career. The Giants won that game 7-6 in 15 innings, and his grandfather threw the ceremonial first pitch before the next game in front of a Boston crowd. For the 2019 season, Yastrzemski played 107 games with a .272/.334/.518 slash line, 21 home runs, and 55 RBI, becoming the first Giants rookie since Dave Kingman in 1972 to hit more than 20 home runs.

The 2020 season, shortened by the pandemic, saw Yastrzemski emerge as one of the National League’s top players. He finished the season batting .297/.400/.568 with 10 home runs and led the team with 35 RBI. He led the NL in triples (4) and range factor per 9 innings as a right fielder (2.38), while ranking eighth in OPS (.968) and ninth in doubles (14). His performance earned him All-MLB Second Team honors and an eighth-place finish in NL MVP voting. He also won the Willie Mac Award as the Giants’ most inspirational player.

Yastrzemski continued his solid production through 2021 and beyond. On June 15, 2021, at Oracle Park, he hit his first career grand slam, a go-ahead home run against the Arizona Diamondbacks that landed in McCovey Cove. For the 2021 regular season, he batted .224/.311/.457 with 25 home runs and 71 RBI while leading the National League in range factor per 9 innings for the second consecutive season. He was nominated for a National League Gold Glove Award in right field. His 2022 season saw career highs in doubles (31) while playing a combination of right field, center field, and designated hitter roles. On September 1, 2024, at Oracle Park against the Miami Marlins, Yastrzemski hit his 100th career home run, making he and his grandfather the fourth grandfather-grandson duo in MLB history to each reach 100 career home runs. He played 140 games that season, slashing .231/.302/.437 with 18 home runs and 57 RBI.

Kansas City Royals (2025)

On July 31, 2025, the Giants traded Yastrzemski to the Kansas City Royals in exchange for Yunior Marte. He made 50 appearances for the Royals during the remainder of the season, batting .237/.339/.500 with nine home runs and 18 RBI. The trade provided Yastrzemski with a brief opportunity with another American League franchise before he signed with his current team.

Atlanta Braves Era (2026–Present)

On December 10, 2025, Yastrzemski signed a two-year contract with the Atlanta Braves worth up to $23 million. The move brought him back to the organization that had drafted his father nearly four decades earlier. Yastrzemski joined a Braves outfield rotation and brought his veteran experience and power-hitting abilities to a team with championship aspirations. He wears jersey number 18 for the Braves.

Driving Style and Strengths

Yastrzemski has established himself as a versatile outfielder with above-average power and solid defensive metrics. His range factor statistics have consistently ranked among the National League leaders during his career, particularly in right field. He has demonstrated the ability to play all three outfield positions, with most of his innings coming in right field and center field. His offensive approach features a combination of patience at the plate and the ability to drive the ball to all fields, which has allowed him to maintain respectable on-base percentages despite periods of lower batting averages.

Notable Events and Milestones

Yastrzemski’s career has been defined by several significant milestones that connect his present achievements to his family’s legendary past. His debut at Fenway Park and his 20th home run in that venue, played in the same ballpark where his grandfather established his Hall of Fame career, represented a symbolic passing of the torch. The moment when he received a first pitch from his grandfather Carl Yastrzemski in front of a Boston crowd remains one of baseball’s more poignant generational stories. His 100th career home run on September 1, 2024, solidifying his place alongside his grandfather as one of only four grandfather-grandson duos to each reach 100 home runs, marked another milestone that highlighted his sustained success in the major leagues.

Michael Andrew Yastrzemski Career Statistics

Through June 28, 2026, Yastrzemski has accumulated impressive statistics across his MLB career spanning seven seasons with three franchises. His career numbers reflect his consistency as a middle-of-the-order threat with pop and the ability to drive in runs. He has demonstrated extra-base hit power throughout his career, with his doubles and triples totals highlighting his ability to hit for extra bases.

Major League Baseball Highlights

Yastrzemski’s most productive season came in 2020, when he earned All-MLB Second Team honors while leading the National League in triples and range factor as a right fielder. He also led the Giants in RBI that season despite playing in only 50 games due to the pandemic-shortened schedule. His 2021 season featured a career-high 71 RBI, and his grand slam against Arizona represented one of the signature moments of his power-hitting career. The 2024 season saw him reach the 100-home run milestone, a significant achievement that places him among baseball’s notable family legacies.

Minor League and College Achievements

Before reaching the majors, Yastrzemski excelled at every level of professional baseball. He led all of Minor League Baseball with 18 triples in 2014 and earned multiple All-Star selections during his time in the Orioles’ system. His collegiate career at Vanderbilt included All-Southeastern Conference honors and summer league experience with the Cotuit Kettleers, where he faced top college talent from across the country.

Michael Andrew Yastrzemski Family

Family Background and Baseball Lineage

Yastrzemski’s family represents one of baseball’s most storied lineages. His grandfather, Carl Yastrzemski, is a National Baseball Hall of Famer who spent all 23 seasons of his MLB career with the Boston Red Sox from 1961 to 1983. Carl Yastrzemski accumulated 3,419 hits, 646 home runs, and 1,844 RBI while winning the Triple Crown in 1967 and the American League MVP Award that same year. He was a 18-time All-Star and one of the most celebrated players in baseball history. Beginning during Yastrzemski’s freshman year of high school, his grandfather began teaching him hitting, passing down techniques and wisdom that would shape his grandson’s approach at the plate.

His father, Carl Yastrzemski Jr., followed his own baseball path, playing for the Florida State Seminoles before being drafted by the Atlanta Braves in 1984. Carl Jr. played professionally in the minor leagues through 1988 before his untimely death in 2004 at age 43. The blood clot that developed after hip surgery cut short a life that had shown promise both on and off the field. Yastrzemski has spoken about the influence both his father and grandfather had on his development, noting the special bond he formed with his grandfather during his high school years.

Personal Life

Yastrzemski met his wife, Paige (née Cahill), while attending Vanderbilt University, and the couple married in November 2018. They have two children together, a daughter and a son, forming a family that continues the Yastrzemski legacy into a new generation. Yastrzemski continues to reside in Andover, Massachusetts, the same town where he was born and raised, maintaining strong ties to his New England roots despite his professional career having taken him across the country. He remains active on social media under the handle @mikeyaz18, connecting with fans who follow his career.

2025 Season Performance

The 2025 season represented a year of transition for Yastrzemski, beginning with the San Francisco Giants before a mid-season trade to the Kansas City Royals. He opened the season with the Giants on a one-year contract valued at $9.25 million after avoiding salary arbitration. Through 96 games with San Francisco, Yastrzemski batted .231/.330/.355 with eight home runs and 28 RBI, appearing in a mix of outfield positions while the Giants navigated their own roster decisions. The trade to Kansas City on July 31 provided him with a change of scenery for the final stretch of the season.

With the Royals, Yastrzemski made 50 appearances and showed improved power numbers, batting .237/.339/.500 with nine home runs and 18 RBI in a smaller sample size. The Royals acquired him to add veteran experience and right-handed power to their lineup for their playoff push. While the specific playoff results for 2025 are not available in the provided data, the trade itself reflected Yastrzemski’s value as a proven MLB contributor who could help a contending team. His performance split between two teams demonstrated his ability to adjust to new environments while maintaining his offensive capabilities. The season ultimately led to his signing with the Atlanta Braves in December 2025, where he will look to contribute to another championship-caliber roster in the years ahead.