Tomas Machac hadn’t played the Ultimate Tennis Showdown format prior to debuting in Guadalajara this weekend. Yet as Sunday came to a close, he walked away as an undefeated champion after going ...

On Friday, Denis Shapovalov (No. 54 in the world) meets Tomas Machac (No. 25) in the quarterfinals at the Dallas Open. Shapovalov secured a three-set win over Taylor Fritz (2-6, 6-3, 7-6 ...