Milos Raonic moved into the third round at Wimbledon for the first time in his career on Thursday, while fellow Canadian Eugenie Bouchard also advanced on the women's side.
Raonic, the No. 8 seed from Thornhill, Ont., needed only 90 minutes to win his match against unseeded American Jack Sock 6-3, 6-4, 6-4 on the grass at the All England Club.
His next opponent will be another unseeded player — Lukasz Kubot of Poland.
"I've improved a lot on grass since I first played here and my confidence on the surface is higher," Raonic said. "I don't think about my movement, I can concentrate on how I want to play."
Bouchard, the Montrealer ranked 13th in the women's draw, defeated unseeded Spaniard Silvia Soler-Espinosa 7-5, 6-1 to reach the third round for the second straight year.
Her next opponent is No. 20 Andrea Petkovic of Germany.
Bouchard is looking to reach the semifinals of a Grand Slam for the third consecutive time after doing it at the Australian Open and the French Open this season.
Frank Dancevic of Niagara Falls, Ont., was eliminated Thursday when he dropped his second-round match to Kazakhstan's Mikhail Kukushkin, 6-3, 6-3, 6-2.
Dancevic said he was battling a sore hip during the match.
Nadal avenges last year's defeat
Rafael Nadal was one point away from falling behind by two sets before rallying to beat Lukas Rosol, the Czech player who knocked him out at Wimbledon in the same round and on the same court two years ago.
The No. 2-seeded Nadal, a two-time Wimbledon champion, raised his game just in time to avoid falling into a deep hole, rallying for a 4-6, 7-6 (6), 6-4, 6-4 victory on Centre Court to advance to the third round.
The hard-hitting, 6-foot-5 Rosol had a chance to go up two sets to love when he had a set point at 6-5 in the second-set tiebreaker. But Nadal saved it with a forehand winner and Rosol double-faulted two points later to give the Spaniard the set.
Roger Federer erased memories of his second-round exit last year, beating qualifier Gilles Muller of Luxembourg 6-3, 7-5, 6-3 to reach the third round.
The seven-time Wimbledon champion had 25 aces — including three in the final game — in a match that finished under the roof on Centre Court because of rain that forced suspension of play at the All England Club.
Federer lost at the same stage here last year to Sergiy Stakhovsky.
Serena makes quick work of Scheepers
Five-time champion Serena Williams wasted no time in reaching the third round, routing Chanelle Scheepers 6-1, 6-1 in just 49 minutes.
Chasing her 18th Grand Slam title, the top-seeded American overwhelmed the 94th-ranked South African in the opening match on Court 1.
Williams, coming off a second-round loss at the French Open, served eight aces and had 26 winners.
The 30-year-old Scheepers, who had never won a match at Wimbledon until this week, had only five winners to go with 13 unforced errors.
Gael Monfils made another early exit at Wimbledon, losing 7-6 (3), 6-3, 6-7 (1), 6-7 (3), 6-4 to Jiri Vesely in the second round of the men's draw.
The 24th-seeded Monfils, who reached the quarter-finals at the French Open earlier this month, has never advanced past the third round at the All England Club on a surface he struggles with.
Vesely, a former junior world No. 1, is playing at Wimbledon for the first time.
Jo-Wilfried Tsonga broke Sam Querrey's service in the 25th game of the final set and clinched the match in the following game for a two-day, 4-6, 7-6 (2), 6-7 (4), 6-3, 14-12 win.
The second-round match was suspended on Wednesday due to darkness with the fifth set tied at 9-9.
Three seeded men lost, including No. 13 Richard Gasquet, who wasted nine match points and was beaten by 19-year-old Nick Kyrgios of Australia 3-6, 6-7 (4), 6-4, 7-5, 10-8.
Winners included No. 5 Stan Wawrinka, No. 9 John Isner and No. 10 Kei Nishikori among the men, and past champion Maria Sharapova among the women.