PARIS (CNN) – His face was creased with worry as he trailed a pumped-up rival, but Rafael Nadal re-emerged after an overnight rain delay to blow away Diego Schwartzman at Roland Garros.

The 10-time champion lost the first set 6-4 to the impressive Argentine on Wednesday, but returned under sunny skies Thursday to win the next three sets 6-3 6-2 6-2 to reach the French Open semifinals.

Spain’s Nadal will next play another Argentine in Juan Martin del Potro after the former U.S. Open champion beat Marin Cilic 7-6 5-7 6-3 7-5.

Nadal, dubbed the ‘King of Clay’ for his domination on the red dirt, had his back against the wall at 3-2 down in the second set Wednesday before the match was halted for rain. The delay enabled Nadal to regroup, and he turned the deficit into a 5-3 lead before a second stoppage ended play for the day.

Returning to the court on Thursday, Nadal quickly polished off the second set and, effectively, Schwartzman’s challenge. Despite some spirited resistance, the 11th seed couldn’t live with Nadal’s new-found intensity, and the 16-time grand slam champion sealed a victory.

Rafael Nadal

Rafael Nadal celebrates victory during his men’s singles quarterfinals match againts Diego Schwartzman of Argentina during Day 12 of the 2018 French Open at Roland Garros on June 7, 2018 in Paris, France. (credit: Cameron Spencer/Getty Images)

“I played to a better level, more aggressive. I continued the level of intensity that I played after the first stop. And, in my opinion, the match changed,” Nadal said. “It was a very difficult match against a good friend and good player. For me, it’s always big emotions to win here.”

Nadal’s streak of 37 consecutive set wins at Roland Garros ended Wednesday, but with victory, the 32-year-old became only the third player in the Open era to reach 11 semifinals in the same grand slam. Roger Federer (at Wimbledon) and Jimmy Connors (at the U.S. Open) are the others.

No player in history has won as many grand slam titles at a single tournament as Nadal has in Paris. Nadal won the French Open in his debut as a 19-year-old and came into this year’s event with a 79-2 win-loss record at Roland Garros.

(© Copyright 2018 Cable News Network, Inc., a Time Warner Company. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)