Dr. Neal ElAttrache will perform the operation in Los Angeles, as this injury dates back to September 5th when the team announced that an MRI revealed new damage in Ohtani's UCL in his pitching elbow. At the time, Tommy John Surgery was suggested, but the first-year Angel had not committed to it.
The 24-year-old started the season as a designated hitter/starting pitcher, and made 10 starts on the season. He went 4-2 with a 3.31 ERA and 63 strikeouts on the mound, before landing on the disabled list after a start on June 6th. At the time, they called it a sprained UCL, which he received multiple injections for. He was shut down from the mound until September 2nd, when he got the start against the Houston Astros, but only lasted 2.1 innings. The team could notice a drop in his velocity and shut him down from pitching for the remainder of the season.
That has not stopped him at the plate, as he continues to get the call as the team's designated hitter, batting .280 with 21 home runs and 56 RBIs in 307 at-bats. He had been scheduled to throw a bullpen session earlier in the month, which was called off once they realized how serious the issue was.
Ohtani went deep during Monday's walk-off win over the Texas Rangers and is expected to continue to play during the final week of the regular season. There is no official timetable on when he will be back on the field following the surgery, but there is a very good possibility that he may not be able to throw a ball until 2020.