SAINT-QUENTIN-EN-YVELINES, France -- Christian Nilsson of Sweden shot a 6-under 65 for a one-stroke stroke after the first round of the French Open on Thursday.
Nilsson made seven birdies and only one bogey on Le National.
The 263rd-ranked Nilsson has not finished in the top 30 this year. He won his only title on the European Tour at the Saint-Omer Open in 2009.
Many favorites struggled on a tough golf course where 11 holes are surrounded by water. Lee Westwood recovered from a poor start to shoot 70.
The former top-ranked Englishman dropped four shots in his first six holes, but finished with five birdies.
"I feel like I've got a couple of snails on my feet," Westwood said after standing in the lake to save par on his last hole.
Westwood found the water on the ninth and rolled up his trousers to steer the ball clear of the lake.
"After Thomas Levet jumping in there and breaking his leg last year, I wasn't sure what was in there," Westwood said. "So I kept my shoes on. I was on the last hole and I had brought plenty of shoes on me ... I was more worried about the trousers than the shoes really."