The Indians announced Friday pitcher Josh Tomlin will undergo arthroscopic debridement surgery due to chronic AC joint inflammation in his right shoulder. He is expected to be sidelined 3-4 months.

Tomlin was optioned to the minors last week. The move will be reversed and he will open the season on the major-league disabled list.

"It's something that kind of crept up in the offseason and lingered on through the spring," Tomlin said, per Cleveland.com. "It's something I don't think was going to go away so we had to do something to make it go away."