Fourth-round action at the BNP Paribas Open starts on Tuesday. Among the highlights? A rematch of a Grand Slam final and rematch of a 2024 semifinal in Tennis Paradise. Here are five encounters to keep an eye on:

Iga Swiatek vs. Karolina Muchova

Given the amount of sets she wins 6-0, including first sets, it’s no surprise that Iga Swiatek was asked what that feels like in the moment. “For sure, I know that I'm in a good place and I'm going the right way,” said Swiatek, who beat Dayana Yastremska 6-0, 6-2 in the third round.

“So I feel pretty pumped up. But on the other hand, calm, because I don't feel that I'm threatened. I need to go and be aware in the second set that it can all change. Second set is a different story. We start from zero kind of again, so the other player can also get their
level up.”

A ‘bagel’ might be difficult for Swiatek and Karolina Muchova on Tuesday. It’s never happened in their four duels. The Czech all-rounder — who was seen by the doctor on court Sunday — has been one of the very few close to toppling the Pole recently at the French Open. Muchova led by a break at 4-3 in the third set of the 2023 final.

Daniil Medvedev vs. Tommy Paul

Daniil Medvedev and Tommy Paul go at it once again in Indian Wells. Last year, their meeting came not in the fourth round but in the semifinals. The often flashy Paul got off to a lightning start, leading 4-0.

“He was playing pretty unbelievable, and I didn't know what to do, so the only thing I can do is try to continue to search for solutions,” Medvedev said after the match. The 2021 US Open champ did and won 1-6, 7-6 (3), 6-2.

But he also benefited from luck. Paul rolled his left ankle early in the tiebreak and didn’t
win another point in the tiebreak. The New Jersey native has had health issues of late, too — a shoulder injury and then stomach illness. Although he is 1-3 against Medvedev, that lone win came in their last meeting in Rome last year.

Mirra Andreeva vs. Elena Rybakina

Mirra Andreeva called her performance against Clara Tauson in a rematch of last month’s Dubai final “not bad.” She was being humble.

While the bigger hitting Tauson struggled with her game, Andreeva barely put a foot wrong in her 6-3, 6-0 win under the lights.

The 17-year-old now attempts to beat Elena Rybakina for the second consecutive event, too, having ousted the 2023 winner in the desert in the Dubai semifinals. “She’s won this tournament before so I think that she feels pretty comfortable playing here,” said Andreeva.

“I know that she serves big and goes for her shots. I’m go- ing to do everything possible to not let her play.” Rybakina did serve big against British baseliner Katie Boulter on Sunday — and also played some incredible defense when needed.

Stefanos Tsitsipas vs. Holger Rune

Stefanos Tsitsipas has gotten his mojo back. After starting the season 2-3, the Greek with the rare one-handed backhand triumphed in Dubai and has kept it going in Indian Wells. “I'm approaching these matches with determination and willingness to just leave it all out there on the court,” said Tsitsipas.

The 26-year-old beat his fellow Grand Slam finalist Matteo Berrettini for the second straight tournament on Sunday.

What stood out?

Tsitipas won 92 percent of his first-serve points while Berrettini tallied a mere 27 percent of his own second-serve points. In a bid to reach a second Indian Wells quarterfinal, he’ll have to overturn an 0-2 record in completed matches against Holger Rune.

Last year’s quarterfinalist is on the upswing, too, winning back to back matches for the first time since the Australian Open after suffering from illness.

Jessica Pegula vs. Elina Svitolina

What’s Jessica Pegula’s mindset at Indian Wells this year?

“I came into this week knowing that, even though it’s not my favorite conditions to be in — besides this amazing weather and fans — I just took it as a challenge every single day to kind of use different parts of my games and not get frustrated if the points are a little bit longer or you’re breaking serve a lot,” Pegula said.

“Just trying to adjust and set challenges for myself." Pegula wanted to get a first win over Wang Xinyu — and did it comfortably on Sunday. On paper, the reigning US Open finalist is the favorite against the gritty Elina Svitoliina.

The Buffalo-born Pegula leads their head-to-heads 5-2, with one of those victories coming in Indian Wells in 2021 (6-1, 6-1). Svitolina, however, impressed on Sunday in overturning
an 0-2 record against Danielle Collins.