Mark Trumbo of the Arizona Diamondbacks has played a number of positions during his career, but it looks like he isn't exactly the most consistent outfielder.
While playing in left field, Scott Van Slyke of the Los Angeles Dodgers crushed a ball deep in Trumbo's direction. Trumbo overestimated the distance of the ball, leaping all the way up on top of the fence.
Unfortunately for Trumbo, the ball didn't come close to where he was, falling short of the wall. Van Slyke ended up coasting into second base for the easy double.