Here's video of Roger Federer trying to play "speed boat tennis" with Australian tennis pro Lleyton Hewitt.
They are not very good at it.
The two superstars decided to smack a few balls around in the middle of Sydney Harbour this morning to promote a new tennis format called FAST4 ... which has nothing to do with boats.
As for the nautical exhibition, it was pretty cool in theory ... and the guys were able to rally the ball back and forth a couple times ... but don't expect Swimbledon anytime soon.
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