Maria faces Serena in last 16

Serena Williams set up a mouth-watering French Open last-16 duel against bitter rival Maria Sharapova on Saturday.

Three-time champion Williams made the fourth round with a ruthless 6-3, 6-4 romp past German 11th seed Julia Goerges.

Sharapova, the 2012 and 2014 winner in Paris, was equally impressive, seeing off Czech sixth seed Karolina Pliskova 6-2, 6-1.

Sharapova and Williams have met 21 times, with the American leading the head-to-head record 19-2 after 18 consecutive wins.

The Russian has not beaten her nemesis since 2004 -- before even the birth of Twitter and YouTube.

Nadal continued his bid for an 11th French Open title by brushing aside Gasquet to claim a 16th consecutive win over his childhood friend.

The world number one's record at Roland Garros now stands at 82 wins and just two losses. The 16-time Grand Slam champion eased to a 6-3, 6-2, 6-2 victory on Chatrier.

The 31-year-old also took his run of consecutive completed sets at the French Open to 34, just seven shy of the record held by Bjorn Borg between 1979 and 1981.

Nadal, who lost only two points in the first five games, will next play Germany's world number 70 Maximilian Marterer, who beat Estonian lucky loser Jurgen Zopp.

Former champion Garbine Muguruza reached the last 16 for the fifth successive year with a comfortable 6-0, 6-2 win over Australia's Sam Stosur.

Spanish third seed Muguruza, the 2016 winner in Paris and the reigning Wimbledon champion, fired 15 winners past Stosur, the 34-year-old 2010 runner-up and former US Open champion.

Argentinian fifth seed Juan Martin del Potro reached the fourth round for the first time in six years by seeing off Albert Ramos-Vinolas 7-5, 6-4, 6-1.