World number one Iga Swiatek cruised into the last 16 of the Madrid Open with a straight-sets victory over Bernarda Pera on Sunday.

The three-time grand slam winner conceded the first break of the match three games in, but she responded brilliantly to that setback to wrap up a 6-3 6-2 win within 76 minutes.

Swiatek did not face a second break point in the match as she rediscovered her composure, continuing her French Open preparations as a barrage of big winners proved too much for Pera.

Speaking on court after her win, Swiatek said: "I wouldn't say it was easy. Every match is tricky here.

"I'm happy that I'm getting into my rhythm. Playing against a lefty is never easy, but I'm pretty happy with that. I was disciplined and focused."

88.2% - Iga Swiatek now holds the highest winning percentage on clay at WTA-1000 events (88.2%), surpassing Serena Williams (88%). Commander.#MMOPEN | @MutuaMadridOpen @WTA @WTA_insider pic.twitter.com/XRrHVvmkfc
— OptaAce (@OptaAce) April 30, 2023

It was a day of few shocks in the Spanish capital, as third seed Jessica Pegula saw off a spirited challenge from Marie Bouzkova to emerge with a 6-4 7-6 (7-2) win.

Pegula will face Italy's Martina Trevisan for a quarter-final spot after she claimed a straight-sets win over another American player in Alycia Parks.

Meanwhile, Russian duo Veronika Kudermetova and Daria Kasatkina will meet in the next round after victories against Anastasia Potapova and Lesia Tsurenko respectively.