For example, he figured out that while a regular Nike Dri-FIT shirt might sell for $10 to $20, one with a Roger Federer or ...

In tennis news, Denis Shapovalov breaks through, Aryna Sabalenka cannot be too disappointed, and Taylor Fritz is ready to play.

As a player he has made it to the pantheon of greats and now he has a chance to join the other elite club that has Beckham, ...