Rafael Nadal of Spain returns the ball during the men's singles final against Dominic Thiem of Austria at the French Open Tennis Tournament 2018 in Paris, France on June 10, 2018. (Xinhua/Chen Yichen)

PARIS, June 10 (Xinhua) -- Spanish tennis ace Rafael Nadal powered past Austrian Dominic Thiem in straight sets here on Sunday, claiming his record-extending 11th title at Roland Garros.

Following his 6-4, 6-3, 6-2 victory over Thiem in men's singles final at the 2018 French Open, Nadal became the second player in history to have won 11 singles titles at any Grand Slam event after Margaret Court, and the first player in the Open Era to have won 11 titles at three different Tour-level events, as he had done at ATP Monte-Carlo Masters and Barcelona Open.

Nadal, who led 6-3 in previous head-to-heads, broke Thiem's service in the second game, before the Austrian had his own response to tie at 2-all through a break.

Thiem was the only player to have defeated Nadal on clay prior to Roland Garros for the second straight year, and his quarterfinal victory over Nadal at the Madrid Masters snapped the Spaniard's 50-set winning streak on clay.

He displayed his lethal weapon of single-handed backhand, while being troubled by unfavorable performance on his first serves, conceding the first set 6-4.

Thiem already suffered four double faults despite four aces at the start of the second set, while Nadal maintained all of his serves in the second set to move a step further at 6-3.

Thiem save three break points to hold his service into the third set, but the "King of Clay" responded by fully exhibiting his powerful forehand for astute winners.

Thiem was hampered by his many unforced errors after long rallies. Nadal finished another break in the third game to move in front, while injuring his left middle finger midway through the fourth game. He continued his momentum following the medical timeout, and managed to convert his fifth match point on Thiem's poor backhand in the eighth game.

After claiming his 17th career Grand Slam title, Nadal was set to retain his top position at the latest ATP rankings ahead of arch rival Roger Federer.

Thiem, who had already recorded his best result at Grand Slams with a final appearance in Paris, will rise to No. 7 on world rankings.