Red Sox ballgirl fields fair ball, immediately regrets her decision

Ya gotta feel for this Red Sox ballgirl. The Royals and Sox were tied in the fourth when Eric Hosmer sent a ball down the right-field line while Omar Infante was breaking for second. Even though the ball stayed inside the bag and was ruled fair, the ballgirl still hopped up and made the play:

Her "whoops" is wonderful and could only have been better had she gone full Urkel.