With some biggest stars in the men’s game off the tour, their countrymen are making names for themselves.

Carlos Alcaraz has reached the round of 16 of the Madrid Open with a straight-set victory over Grigor Dimitrov

Stefanos Tsitsipas reached the quarterfinals of the Barcelona Open by defeating Danis Shapovalov 6-3, 6-2

The 21-time major champion shook off a left hamstring issue in the first set to advance, 6-3, 6-4, Saturday evening. Sebastian Korda awaits the Serbian.

"Don't be shy, and just go for it," said the Korea Open champion. "That's very, very big for Asian tennis players."

Meanwhile, Taylor Fritz is now one spot away from the Top 10, and Rajeev Ram becomes No. 1 in doubles.

The 27-year-old Japanese also beat top seed and world No. 2 Casper Ruud in the quarterfinals.

It's hard to believe that some of today's top pros once had to qualify—and often together.

Meanwhile, Daria Kasatkina returns to the Top 10—and even sets a new career-high—after winning San Jose.

Reviewing performances from three of the game's latest champions, and what their title runs may mean.