Wander Suero

Wander Suero Montero Bio

Wander Suero Montero is a Dominican professional baseball pitcher who has played in Major League Baseball for the Washington Nationals, Los Angeles Dodgers, Houston Astros, and Atlanta Braves. Born on September 15, 1991, he was signed as a non-drafted free agent by the Nationals in 2010. Suero made his MLB debut on May 1, 2018, and became part of the Nationals team that won the World Series in 2019. Throughout his career, he has shown versatility and resilience, contributing as a reliable reliever across different organizations in the league.

Wander Suero Montero Early Life and Background

Wander Suero Montero was born in the Dominican Republic on September 15, 1991. Not much detailed information is available about his early childhood, family background, or education from publicly documented sources. However, growing up in the Dominican Republic provided him with the opportunity to develop his baseball skills in a country renowned for producing elite talent in professional baseball.

Suero was signed by the Washington Nationals as a non-drafted free agent in May 2010. His path to professional baseball began in the Nationals’ player development system in the Dominican Republic, where he spent his first three professional seasons laying the foundation for his career.

Path to Professional Baseball

Upon signing with the Washington Nationals organization in 2010, Suero began his professional career in the Dominican Summer League Nationals from 2010 through 2012. During his debut season in 2010, he started four games and appeared in relief 11 times, finishing with a record of 2-3, an earned run average of 4.72, and 39 strikeouts in 34 and one-third innings.

In 2011, Suero posted a record of 3-2 with a 5.49 ERA, recording 41 strikeouts across 39 and one-third innings in two starts and 14 relief appearances. His 2012 campaign showed marked improvement, as he appeared in nine games, starting eight of them, and recorded a 4-2 record with a 3.41 ERA and 34 strikeouts in 37 innings. This progression demonstrated his ability to adapt and grow within the Nationals’ minor league system.

Wander Suero Montero Career

Minor League Development (2010-2017)

In 2013, Suero moved up to the Rookie-level Gulf Coast League Nationals in Viera, Florida. That season proved exceptional as the Gulf Coast League Nationals finished with a record of 49-9, achieving the highest winning percentage for a full regular season in minor league baseball history. Suero appeared in 13 games, starting three, and posted an impressive 8-1 record with a 1.65 ERA, 46 strikeouts, and 13 walks in 49 innings of work.

The 2014 season saw Suero begin with the High-A Potomac Nationals in the Carolina League, though he struggled with a 7.57 ERA in 27 and one-third relief innings. He was demoted to the Single-A Hagerstown Suns in the South Atlantic League, where he excelled, posting a 2.13 ERA with 62 strikeouts in 72 innings across six starts and 11 relief appearances. His overall 2014 ERA of 3.62 demonstrated his ability to bounce back from adversity.

Suero spent 2015 with the Double-A Harrisburg Senators, posting a 6.35 ERA over 34 relief innings before being demoted to Potomac, where he found success with a 2.41 ERA in 56 innings. He earned a non-roster invitation to major league spring training before the 2016 season and spent that entire year with Harrisburg, dramatically improving to a 2.44 ERA with 48 strikeouts in 55 and one-third relief innings.

The 2017 season proved to be a breakthrough year for Suero. With Harrisburg, he recorded a 1.96 ERA and 10 saves in 23 relief innings, earning a promotion to Triple-A Syracuse Chiefs on June 2, 2017. He collected his first Triple-A save on June 14 against the Pawtucket Red Sox and finished the season with a 1.70 ERA across 36 games after his promotion. The Nationals recognized his excellence by awarding him their Minor League Pitcher of the Year honor. He was subsequently added to the Nationals’ 40-man roster after the season to protect him from the Rule 5 draft.

Washington Nationals Breakthrough (2018-2021)

Suero began 2018 spring training with four scoreless innings and seven strikeouts but suffered an oblique strain in March. After recovering, he joined Syracuse and improved rapidly before receiving his first major league call-up on April 30, 2018. He made his MLB debut on May 1 against the Pittsburgh Pirates at Nationals Park, entering in relief of Max Scherzer and recording his first major league strikeout on May 4 against the Philadelphia Phillies.

On June 18, 2018, Suero became the pitcher of record when the Nationals completed a suspended game against the New York Yankees, earning his first major league win. He led the Nationals in games pitched and relief innings during the 2019 season, recording his first Major League save on June 21, 2019. Suero was part of the World Series champion team that year, appearing in three different games and retiring all five batters he faced without allowing any baserunners, making him the only pitcher in the series to achieve this distinction.

During the pandemic-shortened 2020 season, Suero posted a 2-0 record with a 3.80 ERA and 28 strikeouts in 23 and two-thirds innings across 22 games. On November 30, 2021, the Nationals non-tendered Suero, making him a free agent and ending his tenure with the organization.

Los Angeles Dodgers (2023)

On January 23, 2023, Suero signed a minor league contract with the Los Angeles Dodgers and was assigned to Triple-A Oklahoma City Dodgers. He excelled in the minors, logging a 3.26 ERA with eight saves in 49 and two-thirds innings across 47 appearances. His contract was selected to the active roster on May 5, 2023, but he appeared in only four games for the Dodgers, allowing six earned runs in six and two-thirds innings before being designated for assignment on May 22. He was added back to the roster in September but made just one more appearance. Following the season, he was removed from the 40-man roster and elected free agency.

Houston Astros (2024)

On December 7, 2023, Suero signed a minor league contract with the Houston Astros. He began the 2024 season with Triple-A Sugar Land Space Cowboys and earned a promotion to the major league roster on April 9. He made one appearance for the Astros against the Kansas City Royals but was designated for assignment on April 12. He remained with Sugar Land for the remainder of the season, where he posted a remarkable 7-1 record with a 2.66 ERA and a franchise-record 37 saves, which also set the Pacific Coast League record. Sugar Land won the PCL championship and the Triple-A National Championship Game, and Suero was named a Triple-A All-Star. He elected free agency on October 10, 2024.

Atlanta Braves (2025)

On December 12, 2024, Suero signed a minor league contract with the Atlanta Braves. He made 33 appearances for Triple-A Gwinnett Stripers, posting a 1.50 ERA with 11 saves and 49 strikeouts in 36 innings. On July 11, 2025, the Braves selected his contract to the active roster. However, he struggled in five appearances, allowing seven earned runs in six and one-third innings for an 11.37 ERA. He was designated for assignment on September 2.

Recent Movement and Oakland Athletics

Suero was claimed off waivers by the New York Mets on September 4, 2025, but did not make any appearances before being designated for assignment on September 9. He was sent outright to Triple-A Syracuse on September 11, selected to the active roster on September 18, and then designated for assignment again on September 20. After clearing waivers and being sent outright to Syracuse on September 22, he elected free agency on October 6. On November 20, 2025, Suero signed a minor league contract with the Oakland Athletics.

Wander Suero Montero Career Wins

Throughout his MLB career, Suero has accumulated a win-loss record of 15-14 with a 4.96 earned run average and 216 strikeouts across his time with the Washington Nationals, Los Angeles Dodgers, Houston Astros, and Atlanta Braves.

Washington Nationals Highlights

Suero’s most significant contributions came during his tenure with the Nationals from 2018 to 2021. He was a key member of their bullpen, leading the team in games pitched and relief innings during the 2019 championship season. His performance in the 2019 World Series, where he retired all five batters he faced without allowing any baserunners, stands as a unique achievement in postseason history. His first MLB save came on June 21, 2019, at Nationals Park, and he earned his first major league win in a suspended game against the Yankees.

Minor League Achievements

Suero has demonstrated consistent excellence in minor league play throughout his career. His 2013 season with Gulf Coast League Nationals resulted in an 8-1 record with a 1.65 ERA as part of a historically dominant team. His 2024 season with Sugar Land Space Cowboys was exceptional, with a 7-1 record, 2.66 ERA, and a record-setting 37 saves that earned him Triple-A All-Star honors. His 37 saves established both the franchise record for Sugar Land and the Pacific Coast League record.

2025 Season Performance

The 2025 season represented a challenging year for Suero at the major league level. After beginning the year with Triple-A Gwinnett Stripers in the Braves organization, he received a call-up to Atlanta in July but appeared in only five games, struggling with an 11.37 ERA in six and one-third innings. His difficulties at the major league level led to his designation for assignment in early September.

Following his time with the Braves, Suero was claimed by the New York Mets but did not appear in a game for the organization. He spent the final weeks of the season with Triple-A Syracuse, where he had previously been recognized as Minor League Pitcher of the Year with the Nationals affiliate. The change of scenery and continued minor league success suggested Suero remained a capable pitcher capable of contributing at the highest level when given consistent opportunity.

Signing with the Oakland Athletics in November 2025 provides Suero with a fresh start and another opportunity to earn a spot on a major league roster. His career demonstrates resilience and the ability to perform well in minor leagues, and he will look to carry that momentum into the 2026 season with the Athletics organization.