Iga Swiatek, American Jessica Pegula advance at Wimbledon - ESPN

LONDON — World No. 1 Iga Swiatek cruised into the Wimbledon second round with a 6-1, 6-3 mauling of China's Lin Zhu on Monday in a fine start to her quest for a first Grand Slam title on grass.

Swiatek, who won the French Open title for the third time last month to make it four Grand Slam crowns, has yet to get past the fourth round of the London major.

Swiatek, 22, looked good in her movement on the surface and showed no signs of any effects of the illness that had ruled her out of her Bad Homburg semifinal on Friday.

«I felt really confident. I felt like I did a very good job,» said Swiatek, a former junior champion at Wimbledon. «I feel really good after Roland Garros. After Roland Garros I took some time to appreciate what happened.

»Last year it was my second Grand Slam (at the French Open) and it felt overwhelming. This time I could focus on celebrating and actually at getting back to work with more peace in my head."

Zhu, ranked 34th in the world, earned a break point in the first game but Swiatek won 11 points in a row to sprint into a 3-0 lead.

Another break put Swiatek, a renowned slider on clay and hard courts who has often struggled with her movement on grass, firmly in the driving seat.

Zhu saved two set points at 5-0 but Swiatek sealed the first set a game later with a powerful crosscourt forehand winner.

Play was interrupted due to rain in the second set, but resumed after the roof on Court One was shut. Once back on the court, Swiatek needed only seven minutes to win the two games she needed and sealed victory with a backhand winner.

Swiatek wasn't the only high seed to win on Monday as American Jessica Pegula, the fourth-ranked woman in the world, reached the second round with a hard-fought 6-2, 6-7 (8),