India, Sept. 25 -- Carlos Alcaraz, who seemed to argue with his own coaching box, defeated Sebastian Baez on Thursday to advance to the second round of the Japan Open despite a serious-looking ankle injury.

The top seed injured his ankle on the hard court in Tokyo with the opening set tied at 2-2. After receiving medical attention and extensive strapping, Alcaraz continued to play and then claimed a break to take a 5-4 lead.

The Spaniard's box then appeared to urge him to halt. Play was again halted due to rain, which caused further delay. When the players returned under cover, Alcaraz dominated the remainder of the match.

After surviving the first set 6-4 with his lone break, the Spaniard dominated the second set 6-2 to win.

In the s...