Chicago Cubs right-handed pitcher Ethan Roberts will undergo Tommy John surgery, announced by the Cubs.

The surgery has not yet been scheduled as he has been on a rehab assignment for right shoulder inflammation.

For the season, he appeared in nine games with the Cubs with a 0-1 record and nine strikeouts in 7.2 innings. On May 2, he landed on the 10-day IL.

In his first outing with Triple-A Iowa on June 19, he left the mound after one batter with an elbow injury.

He was drafted by the Cubs in round 4 of the 2018 draft.