Yeah & it did not look good. Yahoo article states:
Cleveland Indians ace Corey Kluber will be sidelined indefinitely after suffering a non-displaced fracture of the ulna, which is the longer of the two forearm bones, in his pitching arm during Wednesday’s 4-2 loss to the Miami Marlins.
The team announced Kluber’s injury immediately following the game.
The injury occurred during the fifth inning when Kluber was struck by a 102.2-mph line drive comebacker off the bat of Brian Anderson.
Kluber instinctively attempted to complete the play, but was unable to use his throwing arm. He unsuccessfully attempted to flip the ball with his glove.
The Indians say Kluber will be re-evaluated Thursday in Cleveland to confirm and assess his timetable.