Justin Sterner

Sterner graduated from Dana Hills High School in Dana Point, California, and completed a two-year mission for the Church of Jesus Christ of Latter-day Saints in Apia, Samoa. He then attended Brigham Young University (BYU), where he played college baseball for the BYU Cougars.^[1]

On August 3, 2020, Sterner signed with the Miami Marlins as an undrafted free agent after he was not selected in the 2020 MLB draft.^[2][3] He did not play in a game in 2020 due to the cancellation of the minor league season because of the COVID-19 pandemic.^[4]

Sterner made his professional debut in 2021 with the Single–A Jupiter Hammerheads, for whom he posted a 1.38 ERA across seven appearances. He was later promoted to the High–A Beloit Snappers, and compiled a 7.36 ERA with 10 strikeouts in five games.^[5]

On July 3, 2021, the Marlins traded Sterner and cash considerations to the Tampa Bay Rays in exchange for David Hess.^[6] He finished the season playing with the High–A Bowling Green Hot Rods and Double–A Montgomery Biscuits.

Sterner split the 2022 campaign between Montgomery and the Triple–A Durham Bulls. In 38 appearances for the two affiliates, he accumulated a 6–2 record and 3.94 ERA with 65 strikeouts across 48 innings of work.^[7] Sterner played 2023 back with Montgomery and Durham, combining for a 5.27 ERA with 71 strikeouts and three saves in 34 total appearances.^[8]

Sterner began the 2024 season in Durham, compiling a 3.60 ERA with 33 strikeouts across 25 innings pitched.^[9] On May 31, 2024, Sterner was selected to the 40-man roster and promoted to the major leagues for the first time.^[10] He made two appearances during his rookie campaign, allowing two runs (one earned) on five hits with four strikeouts over four innings pitched.

On November 4, 2024, Sterner was claimed off waivers by the Athletics.^[11] On April 25, 2025, Sterner recorded his first career win after tossing 1+1⁄3 scoreless innings against the Chicago White Sox.^[12] He did not give up a run in his first 18+2⁄3 innings pitched for the Athletics.^[13]

• Career statistics from MLB · ESPN · Baseball Reference · Fangraphs · Baseball Reference (Minors) · Retrosheet · Baseball Almanac