Hey! It’s the fall out (of view) boy :))

Another angle:

This happened during Andy Murray vs Ernests Gulbis first round match. Later in the match, Murray tripped himself that saw him fell on a racket bag and a chair. This prompted ESPN to run a poll on the tv ‘Who’s had the worst fall tonight, Murray or the ball-boy?’ (news)

Hey, at least the boy got his face flashed across the screen albeit for a few seconds.