Sean Anthony Manaea Overview
Sean Anthony Manaea is an American professional baseball pitcher currently playing for the New York Mets of Major League Baseball (MLB). He has previously pitched for the Oakland Athletics, San Diego Padres, and San Francisco Giants across his professional career. Manaea attended Indiana State University and was selected by the Kansas City Royals in the first round of the 2013 MLB draft before making his debut in 2016. He is best known for throwing a no-hitter against the Boston Red Sox in 2018, one of the defining individual moments in recent Oakland Athletics history.
Manaea emerged as one of the most reliable starting pitchers in MLB over the course of more than a decade in the majors. He throws a fastball that has reached 97 miles per hour and combines it with a deceptive changeup and an effective slider. Beyond his on-field accomplishments, Manaea carries personal significance in his career choice, wearing number 59 as a tribute to his older half-brother who passed away in January 2024. His career has been defined by resilience, overcoming early-career hip surgery and midseason injuries to remain an effective arm across multiple organizations.
Founding and Organizational Origins
Sean Anthony Manaea was born on February 1, 1992, in Wanatah, Indiana, a town of approximately 1,000 people. His father, Faaloloi Manaea, was born in Lauliʻi, American Samoa, served in the Vietnam War, and eventually settled in Indiana, where he worked for the Inland Steel Company. His mother, Opal, worked as a factory worker. Growing up in rural Indiana, Manaea was largely isolated from his father’s Samoan cultural heritage until he visited American Samoa for the first time in 2014.
Manaea attended South Central Junior-Senior High School in Union Mills, Indiana, for his first three years before transferring to Andrean High School in Merrillville, Indiana, for his senior year. At Andrean, he helped lead the baseball team to a state championship in 2010. As a high school senior, his fastball reached between 82 and 85 miles per hour, showcasing the velocity that would later define his professional career. He went undrafted out of high school, which led him to accept a college baseball opportunity at Indiana State University.
Growth Into Major League Baseball
At Indiana State University, Manaea played for the Indiana State Sycamores in the Missouri Valley Conference of NCAA Division I. As a freshman, he played collegiate summer baseball for the Dubois County Bombers of the Prospect League. His sophomore season in 2012 proved transformative — he pitched to a 5–3 record with a 3.40 earned run average and recorded 115 strikeouts in 105 innings, ranking 13th in the nation in strikeouts. After his sophomore year, he competed for the Hyannis Harbor Hawks in the Cape Cod Baseball League, where he dominated at 5–1 with a 1.22 earned run average and 85 strikeouts in 51 and two-thirds innings, setting a modern single-summer record for strikeouts and earning the league’s Outstanding Prospect Award.
Considered a top prospect in the 2013 MLB draft, Manaea was scouted by the Houston Astros, who held the first overall pick. However, he had pitched through a hip injury that was misdiagnosed as a manageable hip impingement during his junior year, causing his velocity to drop and ultimately leading to his selection at 34th overall by the Kansas City Royals. The Royals signed him to a 3.55 million dollar signing bonus, well above the recommended value for the 34th pick. He underwent surgery to repair a torn acetabular labrum in his hip and missed the remainder of the 2013 season.
Sean Anthony Manaea Career Journey
Manaea’s career trajectory spans nearly a full decade across four Major League Baseball organizations, marked by periods of elite performance and recurring injury challenges. From a small-town Indiana upbringing to a first-round draft pick and a no-hitter in Oakland, he has established himself as one of the more resilient and respected starting pitchers of his generation. His journey through Kansas City’s farm system, followed by his rise and peak years in Oakland, trades to San Diego and San Francisco, and a productive chapter with the New York Mets, reflects both the volatility of pitching careers and his ability to adapt and succeed at every stop.
Early Seasons and Development (2013-2015)
After recovering from hip surgery, Manaea reported to spring training healthy in 2014 and was assigned to the Wilmington Blue Rocks of the High-A Carolina League. The Royals limited him to 150 innings pitched for the season. He posted a 7–8 record with a 3.11 earned run average in 25 games started, leading the Carolina League with 146 strikeouts in 121 and two-thirds innings, a rate of 10.8 strikeouts per nine innings. He was named a 2014 MiLB Organization All-Star in recognition of his performance. Manaea missed the beginning of the 2015 season due to abdominal and groin injuries but received a promotion to the Northwest Arkansas Naturals of the Double-A Texas League in July.
On July 28, 2015, the Royals traded Manaea and pitcher Aaron Brooks to the Oakland Athletics in exchange for All-Star second baseman Ben Zobrist. The Athletics assigned him to the Midland RockHounds of the Texas League, where he excelled in his new organization, posting a 1.90 earned run average with 51 strikeouts in 42 and two-thirds innings over seven starts. He was named an MiLB Organization 2015 All-Star and earned AFL Rising Star honors while pitching for the Mesa Solar Sox in the Arizona Fall League. He began the 2016 season with the Nashville Sounds of the Triple-A Pacific Coast League.
Breakthrough in Major League Baseball (2016-2021)
Manaea made his Major League Baseball debut on April 29, 2016, after three strong starts for Nashville in which he went 2–0 with a 1.50 earned run average and 21 strikeouts in 18 innings. In his rookie season, he pitched to a 7–9 record and a 3.86 earned run average in 25 games, 24 of them starts, covering 144 and two-thirds innings. He was placed on the disabled list in late April 2017 due to a left shoulder strain but rebounded to set an American League record in 2017, completing 16 consecutive outings of at least two innings with no more than five hits allowed — surpassing Tom Gordon’s streak of 15 games from 1992. He finished the 2017 season with a 12–10 record and a 4.37 earned run average in 29 starts.
On April 21, 2018, Manaea pitched a no-hitter against the Boston Red Sox at Oakland-Alameda County Coliseum, winning 3–0. He struck out 10 batters and walked two, becoming the first Athletics pitcher to throw a no-hitter since Dallas Braden’s perfect game in 2010. The 2018 Red Sox had the best record of any team ever no-hit in MLB history at the time. Manaea and Manny Machado were named the American League Co-Players of the Week for the week ending April 22. He finished the 2018 season with a 12–9 record in 27 starts before undergoing arthroscopic surgery on his left shoulder in September.
Manaea spent the early portion of 2019 rehabilitating from shoulder surgery and made his season debut in September, going 4–0 in five starts with 30 strikeouts in 29 and two-thirds innings. He started the 2019 American League Wild Card Game, allowing four runs on four hits, including three home runs, in a 5–1 loss to the Tampa Bay Rays. In the pandemic-shortened 2020 season, he went 4–3 with a 4.50 earned run average in 11 starts. The 2021 season proved one of his most productive, as he led the American League with 32 starts and two shutouts, going 11–10 with a 3.91 earned run average and 194 strikeouts in 179 and two-thirds innings, ranking in the top 10 in the league across multiple pitching categories.
Modern Program and Current Direction (2024-Present)
After the 2022 season with San Diego, in which he went 8–9 with a 4.96 earned run average in 30 games, Manaea signed a two-year, 25 million dollar contract with the San Francisco Giants on December 16, 2022. He appeared in 37 games, 10 of them starts, in 2023, posting a 7–6 record with a 4.44 earned run average and 128 strikeouts in 117 and two-thirds innings. He opted out of the second year of his Giants contract and became a free agent after the 2023 season.
On January 12, 2024, Manaea signed a two-year, 28 million dollar contract with the New York Mets that included an opt-out clause after the 2024 season. He delivered his most productive individual season in 2024, making 32 starts and posting a 12–6 record with a 3.47 earned run average and a career-high 184 strikeouts in 181 and two-thirds innings. On June 26, 2024, he recorded the 1,000th strikeout of his Major League career, fanning Juan Soto in the third inning of a 12–2 victory over the New York Yankees. He earned his first career postseason win on October 8, 2024, pitching seven scoreless innings against the Philadelphia Phillies in Game 3 of the National League Division Series. After the 2024 season, he opted out of his contract and became a free agent, declining the Mets’ qualifying offer before re-signing on a three-year, 75 million dollar contract on December 27, 2024.
Philosophy and Competitive Strengths
Manaea’s pitching identity rests on a combination of a mid-90s fastball, an elite changeup, and a tight slider, along with exceptional command and the ability to pitch deep into games. His 2017 streak of 16 consecutive outings of at least two innings with five or fewer hits allowed demonstrated the kind of sustained efficiency that defines his best work. In 2024, his 32 starts and 184 strikeouts represented a career high and re-established him as one of the more reliable starting arms in the National League.
Key Milestones and Major Moments
Manaea pitched a no-hitter against the Boston Red Sox on April 21, 2018, becoming the first Athletics pitcher to throw a no-hitter since Dallas Braden’s perfect game in 2010. He recorded the 1,000th strikeout of his Major League career on June 26, 2024, against the New York Yankees. He earned his first career postseason win on October 8, 2024, pitching seven scoreless innings against the Philadelphia Phillies. He signed a three-year, 75 million dollar contract with the New York Mets on December 27, 2024, marking one of the most significant free-agent signings of the 2024-2025 offseason.
Sean Anthony Manaea Achievements and Results
Across his MLB career, Manaea has thrown a no-hitter, recorded over 1,200 career strikeouts, and reached the postseason multiple times. His no-hitter against the 2018 Red Sox remains one of the most celebrated individual pitching performances in Oakland Athletics history. He has earned All-Star recognition at the minor league level and has consistently ranked among the league leaders in starts, strikeouts, and innings pitched in his best seasons.
Major League Baseball Achievements
Manaea’s career statistics through late June 2026 include a win-loss record of 80 wins and 69 losses, a 4.11 earned run average, and 1,248 strikeouts. His most iconic MLB achievement came on April 21, 2018, when he threw a no-hitter against the Boston Red Sox at Oakland-Alameda County Coliseum, striking out 10 batters and walking two in a 3–0 victory. This no-hitter made him the first Athletics pitcher to accomplish the feat since Dallas Braden’s perfect game in 2010 and was particularly remarkable given the Red Sox’s dominant record at the time. He earned his first postseason victory on October 8, 2024, pitching seven innings of one-run ball against the Philadelphia Phillies in Game 3 of the National League Division Series.
College and Amateur Achievements
At Indiana State University, Manaea was named a Preseason All-American in 2013 and added to the National Pitcher of the Year Watch List. During the 2012 Cape Cod Baseball League season with the Hyannis Harbor Hawks, he went 5–1 with a 1.22 earned run average and 85 strikeouts in 51 and two-thirds innings, setting the modern record for strikeouts in a single Cape Cod League season. He won the league’s Outstanding Prospect Award and was named the B.F.C. Whitehouse Top Pitcher, Summer National Player of the Year by Perfect Game USA, and the Cape Cod League’s top prospect by Baseball America.
Minor League Achievements
Manaea was named a MiLB Organization All-Star in both 2014 and 2015. In 2014, with the Wilmington Blue Rocks, he led the Carolina League with 146 strikeouts in 121 and two-thirds innings. After being traded to the Athletics, he posted a 1.90 earned run average with 51 strikeouts in 42 and two-thirds innings in Double-A during 2015. He also earned AFL Rising Star honors and a spot on the AFL All-Prospect Team while pitching for the Mesa Solar Sox in the Arizona Fall League. His dominant performance at Triple-A Nashville in 2016 — a 2–0 record with a 1.50 earned run average and 21 strikeouts in 18 innings — earned him a quick promotion to the Major Leagues.