HIGHLIGHTS-Tennis-French Open day one

Highlights of Sunday's opening day of the French Open, the second grand slam tournament of the year (all times GMT):

1110 MUGURUZA TAKEN TO THREE SETS

Former champion Garbine Muguruza was stretched to three sets in her opening round match against American Taylor Townsend, eventually winning 5-7 6-2 6-2. Muguruza fired six aces and won five break points in the encounter, hitting 37 winners along the way.

1050 QUERREY WITHDRAWS WITH INJURY

American Sam Querrey has pulled out of the tournament with an abdominal injury. He has not played a game since his semi-final exit in Houston last month.

Switzerland's Henri Laaksonen will take his place in the draw to take on Spanish qualifier Pedro Martinez Portero in the opening round.

1022 KERBER UPSET IN STRAIGHT SETS

Fifth seed Angelique Kerber was knocked out in the opening round 6-4 6-2 by Russia's Anastasia Potapova, who is in the main draw for the first time. Potapova took 73 minutes to dismantle her opponent for the first top-10 victory of her career.

PLAY UNDERWAY AT ROLAND GARROS (0900 GMT)

Play got underway on schedule under sunny skies at 11 a.m. local time (0900 GMT) with the temperature hovering at the 18 degrees Celsius mark and a forecast high of 22C.