It’s not often you see Roger Federer left stunned by his opponent on a tennis court.
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However, a young fan left Federer no choice but to chew his top after lobbing the 17-time Grand Slam winner in a playful rally.
The youngster stepped in for up and coming star Grigor Dimitrov in an exhibition event at Madison Square Garden in New York, and his shot got the crowd up on its feet.
Check it out below!