I struggled quite a long time with my backhand, which was one of my best weapons before my surgery.
Marco ChiudinelliEarly in my career, I struggled with consistency, but I couldn't get more consistent than this year.
Roger FedererI'm really trying to focus myself on playing tennis, and I think that's really important.
Stefan EdbergI knew that maybe I couldn't be playing again, but I just wanted to get in physical shape.
Steffi GrafAlways staying focused is something that's been very tough for me. I'm still working on it.
Sloane Stephens