Rafael Nadal swept past Leo Borg, son of tennis great Bjorn Borg, to advance to the second round of the Bastad Open on Tuesday as he builds towards the Paris Olympics.

It was Nadal's first singles match since the 38-year-old fell in the opening round at Roland Garros on May 27, and he eased to a 6-3, 6-4 win in wet conditions.

Both Nadal and the 21-year-old Borg, currently ranked 461st in the world, were wild card entries to the Swedish clay-court tournament.

Despite an early scare with the former world number one slipping on the wet white line, Nadal broke for 3-1, hitting four aces to take the first set in 43 minutes.

An immediate break gave the Spaniard a foothold in the second, sealing the match on his second match point after 1hr 25min on court for his eighth ATP tour match win this season.

"It's good, I'm finally defending my title," joked Nadal, who has not played in Bastad since winning the title aged 19 in 2005.

"I haven't been playing a lot of tennis in the last few months.

"Even in the tougher moments, I have been able to keep going with the help of the team, but of course the fans have a huge impact on that. They give me amazing energy."

The 22-time Grand Slam winner praised his rival, the son of the long-retired former world number one Bjorn Borg, now 68.

"It's a huge honour to play against the son of one of the biggest legends in the history of our sport," said Nadal. "I think he played quite well, he has a great future in front. I wish him all the very best." (AFP)