yeah if they do that.
But then again its not because almost every single pro has drastically different specs (wheight)
I think they could just play a "racquets vary due to needs ect... and he is paid to and undercontract he does play with blah blah blah racquet"
But there is all that stuff with the warranty.
Maybe a lawyer would know.
But im assuming its somehow a loophole, otherwise somone would have sued wilson or babolat or prince a long time ago.
And they could say he just practices it.
He could use it like 2x or somthing at home or at some practice or somthing and then they can legaly claim nadal uses bab aeropro drive