Hmmm, it helped me generating more pace on the BH side... especially when the ball bounced high above the net. I don't know about the injury, but it sure helps a shorty like me
And one more thing, it scares the player on the other side of the court!
I'm an obsessed fan
(i don't know anything about that personally. i used to play with a... umm one-handed backhand! haha)
anyway jokes aside, i must say that nico gave everything in that first set yesterday
but rafa was a class above him