Unhappy with the speed his serves were clocking, Roger Federer tried something different to get the ball moving a bit faster. Have a look:
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Who Are Roger Federer's Kids? Know All About Federer's Twins
Unhappy with the speed his serves were clocking, Roger Federer tried something different to get the ball moving a bit faster. Have a look:
Who Are Roger Federer's Kids? Know All About Federer's Twins
