Before each day's play at the BNP Paribas Open, we'll preview three must-see matches.

Three of the four semifinalists of the ATP 250 event in Santiago are South American players.

The Spaniard advanced to the quarterfinals at the clay-court event in Santiago with a 6-4, 6-4 win.

While Alcaraz consistently gets better and better, his opponent in this one is going to feel good about his chances of making this a competitive match on clay.

Fritz's opponent in this match is a true clay-court specialist, meaning the American should have no problems getting through to the next round.

The Spaniard has a sparkling doubles resume—including a gold medal and three Masters 1000 crowns—and he's playing doubles for the first time since the 2020 ATP Cup.

Sebastian Korda beat eighth-seeded Yoshihito Nishioka, 6-3, 6-3, on Thursday to set up an all-American semifinal against Tommy Paul at the Emilia-Romagna Open.

They might not have chosen the route they took to the second round at Roland Garros, from a final in Hamburg on Sunday to a five-setter in Paris today.

With two Grand Slam breakthroughs in 2019, the Spaniard is on the cusp of the Top 10.

So far this season, four of his five losses have come against players ranked outside the Top 50.