While stealing second base on Sunday, Mike Trout has a tear in the ucl tear of his left thumb. The injury will require Trout to go on the Disabled List for the first time in his career. Surgery is a possibility and he’s expected to miss anywhere from 4-8 weeks of playing time. Teammate Andrelton Simmons had a similar injury in 2016 and missed 5 weeks.
— MLB Network (@MLBNetwork) May 30, 2017