STRASBOURG, France – Monica Puig recovered from a one-set deficit to upend top seed Sara Errani, 4-6, 6-3, 6-1, to advance to the second round of the Internationaux de Strasbourg.

Puig had never lost to the 2012 French Open finalist in their two previous encounters, and though their first match-up on clay looked to give the Italian an advantage, the ultimate result wasn’t any different as the Puerto Rican star and 2014 champion hit six aces en route to a one hour and 45 minute victory.

“I’m really pleased to get the win here in Strasbourg, and it’s nice coming back as a former Champion,” she said after the match. “Errani is a really tough competitor, and after the first set, my head could have gone down, but I kept fighting and was really pleased with the victory, especially the third set score.”

For Errani, it marks the end of a difficult red clay swing; after a promising start and a run to the semifinals of the Volvo Car Open, the Dubai Duty Free Tennis Championship winner went 0-3 in Madrid, Rome, and Strasbourg.

“I tried my best today but sometimes it just doesn’t go your way,” Errani said. “I felt strong after the first set but my game was a little off and I found the conditions tough.

“There was a time in the second set when it went 4-2 and I knew I was struggling. Then the third set happened. It’s never nice to go out in the first round but that’s tennis.”

Undaunted, the No.1 seed tried to find a silver lining in her early defeat.

“I haven’t had time to see the city yet but maybe before I go to Paris.”

Puig will next play lucky loser and former World No.16 Virginie Razzano, who defeated 2010 French Open quarterfinalist Yaroslava Shvedova, 6-3, 6-3.

Earlier in the day, No.3 seed Samantha Stosur continued her successful clay court season with a 6-3, 7-5 victory over American qualifier Lauren Davis, while No.8 seed Timea Babos went through Olga Govortsova 6-4, 6-1. No.10 seed Caroline Garcia was imperious in a 6-1, 6-2 win over Kirsten Flipkens, while qualifier Mirjana Lucic-Baroni won a see-sawing 6-2, 2-6, 6-1 match against Qiang Wang.

No.2 seed Sloane Stephens had just leveled her first round match with Donna Vekic at one set apiece before the match was suspended, first due to rain, then darkness at 7-5, 2-6.