[フェデラー]

Originally Posted by Conquistador

Gamma has some of the best stuff that no one knows about. Once Gamma grows-it could overtake the Yonex's of the world.

but who uses yonex, like 2 people on the mens and maybe that many on the WTA lol. most peoples contracts most likely can extend to grips. Fed uses wilson grip, nadal babolat, djoko head.or they use tournagrip. if gamma wants to do anything they need money.