HIGHLIGHTS-Tennis-Wimbledon day seven

Highlights of the seventh day at Wimbledon, the third Grand Slam tournament of the year, on Monday (times GMT): 1355 NADAL MAKES LIGHT WORK OF SOUSA

French Open champion Rafa Nadal eased past Portuguese Joao Sousa 6-2 6-2 6-2 to reach his seventh Wimbledon quarter-final. The third-seeded Spaniard will next face either Sam Querrey or Tennys Sandgren of the U.S.

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Heavier balls to blame for slower game at Wimbledon, says Nadal 1315 SERENA RACES INTO QUARTERS, SETS UP RISKE CLASH

Serena Williams produced a clinical display to beat Spain's Carla Suarez Navarro 6-2 6-2 in 63 minutes on Court One. The seven-time champion struck 21 winners and won 78% of her first serve-points to set up a quarter-final clash with fellow American Alison Riske.

1235 STRYCOVA FIGHTS BACK TO REACH QUARTERS Barbora Strycova fought back from a set and 5-2 down to beat Belgian Elise Mertens 4-6 7-5 6-2.

Strycova, who last reached the Wimbledon quarter-finals in 2014, will next face either Britain's Johanna Konta or her Czech compatriot Petra Kvitova. 1205 ZHANG SURVIVES YASTREMSKA SCARE

China's Zhang Shuai recovered from a mid-match blip to beat Ukrainian 19-year-old Dayana Yastremska 6-4 1-6 6-2. Zhang, ranked 50th in the world, equalled her best ever Grand Slam singles performance - a quarter-final appearance at the 2016 Australian Open.

1200 SVITOLINA SAILS INTO QUARTERS Eighth seed Elina Svitolina struck 30 winners in a routine 6-4 6-2 win over Croatia's Petra Martic to reach her first Wimbledon quarter-finals.

1150 RISKE DOWNS WORLD NUMBER ONE BARTY IN THREE SETS American Alison Riske came back from a set down to beat world number one Ash Barty 3-6 6-2 6-3 in the last 16.

Riske, ranked 55th in the world, claimed a decisive break in the eighth game of the final set to knock out Australian Barty and reach her first Grand Slam quarter-finals. "I'm so excited, and so proud of myself for the way I've handled matches here," Riske said after the match.

"I couldn't begin to say what Wimbledon means to me. Getting to the quarter-finals is amazing, but just the way I've been fighting is the best thing for me." 1100 PLAY ON 'MANIC MONDAY' BEGINS AT WIMBLEDON

Roger Federer, Rafael Nadal, Novak Djokovic and Serena Williams are all round of 16 action at the All England Club later on Monday.