Tennis players, the ATP and WTA Tours and the Grand Slams are on a collision course over the future of their sport.

"Relying on your performance to succeed can be difficult, especially when dealing with setbacks like injuries," said Bernabé Zapata Miralles.

The chair umpire who climbed out of his seat to talk with Nick Kyrgios during a U.S. Open match was suspended for two tournaments by the ATP. Mohamed Lahyani will not officiate at his next two ...