At the Madrid Open, players continued to rely on ball marks to argue with electronic line calling. Tennis needs to find a ...

For years, players used ball marks to understand the story of a match on clay. Now, they are being asked not to trust them.

Nicole Scofield, who runs the Padre Island Madre Facebook page posted footage of the clay balls near the entrance of Whitecap Beach. "They were all different sizes ranging from golf ball size to ...

Planning a last supper party on December 21? To celebrate the Mayan way, you might need several clay balls. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive ...