they're yellow", and another saying "I've always thought tennis balls were green, but if Roger Federer says they are yellow who am I to argue". Despite one person's protests that if "the grass at ...

And if your interest in tennis goes deep enough ... and those wooden shards would stick in the balls and then embed themselves in the players’ hands. Did I mention that the lighting in the ...

Grass and clay are regarded as “natural” surfaces ... impact and the effects of the physical properties of modern rackets on swing characteristics Tennis ball characteristics have also been measured, ...

Tennis fans might sometimes wonder what pros are doing when they stop to inspect a new ball before putting it into play. Are they stalling to contemplate strategy? Checking the manufacturer?