"I've never seen someone so locked in," Frances Tiafoe said of Rafa Nadal.
The Greek feels that he learned a lot about Nadal in his previous two meetings with the great Spaniard.
Simona Halep's reign atop the WTA rankings is ending.
The Frenchman says these are two of the things he has been working on with his new coach.
The Frenchman ripped off his shirt and paid homage to Tiafoe when the met in Melbourne.
