Toronto Blue Jays The
Toronto Blue Jays selected Groshans in the first round, with the 12th overall selection, in the
2018 Major League Baseball draft. Groshans was assigned to the
Rookie-level Gulf Coast League Blue Jays to begin his professional career before being promoted to the
Bluefield Blue Jays of the Advanced-Rookie
Appalachian League in August. In 48 games between the two clubs, Groshans hit .296 with five home runs and 43 RBI. Groshans began 2019 with the
Lansing Lugnuts of the
Single–A Midwest League. He appeared in only 23 games, batting .337 with two home runs and 13 RBI before being shut down for the remainder of the season with a foot injury. Groshans did not play in a game in 2020 due to the cancellation of the minor league season because of the
COVID-19 pandemic. For the 2021 season, he was assigned to the
New Hampshire Fisher Cats of the
Double-A Northeast. He missed playing time in May due to a sore back and was also placed on the
injured list in early September, causing him to miss the end of the season. Over 75 games for the season, Groshans slashed .291/.367/.450 with seven home runs and forty RBI. He opened the 2022 season on the injured list with an oblique strain. Groshans was activated shortly after the season started and was assigned to the
Buffalo Bisons of the
Triple-A International League.
Miami Marlins On August 2, 2022, Groshans was traded to the
Miami Marlins for
Anthony Bass,
Zach Pop, and a
player to be named later (named
Edward Duran on August 31) He was assigned to the
Jacksonville Jumbo Shrimp of the Triple-A International League. On September 13, 2022, the Marlins selected Groshans's contract and promoted him to the major leagues. After going hitless in his debut, Groshans went 3–for–3 the following day against the
Philadelphia Phillies to collect his first three major–league hits. On September 15, Groshans hit his first career home run off of
Noah Syndergaard of the
Philadelphia Phillies. Groshans was optioned to Triple-A Jacksonville to begin the 2023 season. He spent the entire season with Jacksonville, playing in 125 games and batting .244/.339/.330 with 6 home runs and 60 RBI. Groshans was
designated for assignment on February 6, 2024, following the acquisition of
Jonah Bride.
New York Yankees On February 13, 2024, Groshans was claimed off waivers by the
New York Yankees, but was designated for assignment by the team on February 28. He cleared waivers and was sent outright to the Triple–A
Scranton/Wilkes-Barre RailRiders on March 3. Groshans made 17 appearances for Scranton, hitting .228 with one home run and seven RBI; he also played in 34 games for the Double-A
Somerset Patriots, batting .234 with eight RBI.
Oakland Athletics On June 23, 2024, the Yankees traded Groshans to the
Oakland Athletics for
J. D. Davis and cash considerations. In 51 games for the Double-A
Midland RockHounds, he slashed .239/.312/.352 with three home runs and 19 RBI. Groshans elected free agency following the season on November 4.
Kansas City Royals On December 3, 2024, Groshans signed a minor league contract with the
Kansas City Royals. He made 67 appearances for the Double-A
Northwest Arkansas Naturals and Triple-A
Omaha Storm Chasers, batting a cumulative .284/.360/.362 with three home runs and 36 RBI. Groshans elected free agency following the season on November 6, 2025.
Atlanta Braves On January 23, 2026, Groshans signed a minor league contract with the
Atlanta Braves. ==Personal life==