Originally Posted by jazz_girl
Because they're good for practise. They use the same balls as RG, and they get to "train" with top players. Roddick, Agassi, Nalbandian, etc. are also playing in another exhibition. They get to play, try new things and do all that with no pressure. (and winning some money)
no doubt about, but if a player is injured, health becomes a top priority not practicing drop shots, right?
not sure which shoulder is hurting, but even a puff serve motion is not good for it.