San Francisco Giants star Madison Bumgarner opened up about the shoulder injury he suffered in a dirt bike accident. The Giants ace finds himself on the disabled list for the first time in his eight MLB seasons, the result of a crash while dirt biking through Colorado mountains that sprained the AC joint in the left-hander's throwing shoulder. It was a surprise to me, too," Bumgarner said at AT&T Park, spending 15 minutes fielding questions from reporters, via the San Francisco Chronicle.