The 19-year-old had a nice up-close moment with his idol after a good battle on Tuesday in Acapulco

We celebrate Dr. Ivo's 38th birthday with some of his greatestl hits. 

Swiss explains why he's still a major winner at age 35. 

King of Clay opens vs. Mischa Zverev.

The 22-year-old Ukrainian is the first from her country to reach the milestone.

Serena interrupts this match to ask: Mind if I play?

Former No. 1 aims to expand her brand.