Despite the injury he was picked in the second round of the 2018 MLB draft by the Los Angeles Dodgers, though he did not play in a professional game until 2019 when he made 21 starts for the Rancho Cucamonga Quakes.[1][3] The 2020 season minor league season was cancelled because of the COVID-19 pandemic, but Grove was added to the player pool and trained at the alternate site at the University of Southern California.[4] He played in 21 games for the Tulsa Drillers in 2021, where he was 1–4 with a 7.86 ERA in 21 games (19 starts).[3]
Grove was added to the Dodgers 40-man roster in November 2021.[5] After beginning the 2022 season with Tulsa, Grove was promoted to the major leagues to make his debut as the starting pitcher against the Philadelphia Phillies on May 15, 2022.[6] He pitched 3+2⁄3 innings in his debut, allowing four hits while walking three and striking out three. Four unearned runs scored off him and his first MLB strikeout was of Alec Bohm.[7] On September 25, 2022, Grove picked up his first major league win against the St. Louis Cardinals.[8] He made seven appearances in the majors, making six starts with one relief appearance. He allowed 15 earned runs in 29+1⁄3 innings for a 4.60 ERA.[9] He also pitched in 19 games (17 starts) in the minors between Tulsa and the Triple-A Oklahoma City Dodgers, with a 1–5 record and 3.79 ERA.[3]
In 2023, he pitched in 18 games in the majors, with 12 starts, and a 2–3 record with 6.13 ERA.[9] In 2024, Grove became a full-time relief pitcher, making 39 appearances in the majors with a 4–4 record and 5.12 ERA[9] and also pitched 10 games in the minors with a 2–0 record and 1.59 ERA.[3] He pitched in one game in the NLDS, recording one strikeout and allowing a home run.[10] He suffered a shoulder injury in that game and was removed from the postseason roster.[11]