He has previously played in Major League Baseball (MLB) for the Milwaukee Brewers, Tampa Bay Rays, and Los Angeles Dodgers.

[1] In 2015, he played for both the Lake County Captains and the Lynchburg Hillcats, posting a combined 1–1 win–loss record with 12 saves and a 2.08 earned run average (ERA) in 47+2⁄3 innings pitched, in which he struck out 56 batters between the two teams.

[1] On July 31, 2016, the Indians traded Feyereisen along with Clint Frazier, Justus Sheffield, and Ben Heller to the New York Yankees in exchange for Andrew Miller.

[11] On May 21, 2021, the Brewers traded Feyereisen and Drew Rasmussen to the Tampa Bay Rays in exchange for Willy Adames and Trevor Richards.

[15] On December 14, 2022, the Rays traded Feyereisen to the Los Angeles Dodgers in exchange for minor league pitcher Jeff Belge.

[18] He made his Dodgers debut by pitching one inning on March 21, 2024 against the San Diego Padres in South Korea[19] and he was then optioned to the Triple-A Oklahoma City Baseball Club the next day.