The only person who knew Bryce Harper hit a home run was the second base umpire

Some home runs are no-doubters, like Cubs prospect Eloy Jimenez's light-smashing dinger from Monday's Class A Advanced Carolina League's Home Run Derby. Others announce themselves with less fanfare, but are home runs nonetheless. Take, for example, Bryce Harper's two-run shot from Monday's game against the Marlins.
In the top of the first inning, Harper hit a fastball to right field that looked like it left the yard. It cleared the fence, but bounced off the wall and back onto the field. No one was sure if it was a home run or not … except for second base umpire Dana DeMuth.

Even Harper started heading back to first base, but DeMuth never stopped circling his hand. Much like applause saves Tinkerbell in "Peter Pan," DeMuth's call brought Harper's homer back to life:

Though the Nationals took an early lead, the Marlins ultimately won the game, 8-7.