Bieber underwent Tommy John surgery on his right elbow Friday, Tom Withers of the Associated Press reports.

The Guardians transferred Bieber (elbow) to the 60-day injured list from the 15-day IL on Wednesday.

The Guardians placed Bieber (elbow) on the 15-day injured list Saturday.

Bieber will undergo season-ending Tommy John surgery, Tom Withers of the Associated Press reports.

Bieber (2-0) picked up the win Tuesday against the Mariners, allowing six hits over six scoreless inning. He struck out nine and did not issue a walk.

The Guardians announced Tuesday that Bieber will start Opening Day against the A's on March 28, Tom Withers of the Associated Press reports.

Bieber has allowed three runs on five hits and six walks while striking out 12 over 11.1 innings across three Cactus League starts.

Bieber will have no restrictions to begin spring training, Paul Hoynes of The Cleveland Plain Dealer reports.

The Guardians and Bieber avoided arbitration by agreeing to a one-year, $13.125 million contract Thursday, Robert Murray of FanSided.com reports.

Bieber (6-6) earned the win Wednesday, allowing one run on five hits over six innings against the Reds. He struck out seven and did not walk a batter.