Juan Martin del Potro is ready to medal up…

The 27-year-old Argentine tennis player, who won the bronze medal at the 2012 London Games, has advanced to the Gold Medal match in Men’s Singles at the 2016 Rio Games.

del Potro ended Rafael Nadal‘s bid for an unprecedented second Olympic singles gold medal in a thrill-a-minute semifinal, then celebrated as if the title were already his, kneeling to kiss the court before leaping into the stands.

del Potro will add a silver or gold to that after advancing to the 2016 Summer Olympics final by coming back to stun 2008 champ Nadal 5-7, 6-4, 7-6 (5) in more than 3 hours Saturday.

“Both of us,” Nadal said, “played a very high level.”

Using the same ferocious forehands that carried him past ATP World No. 1 Novak Djokovic in the first round a week ago, the 2009 US Open champion now will try to pull off a third surprise on Sunday, when he meets defending Olympic champion Andy Murray in the best-of-five-set final.

“It means something very, very big in my career. It would be the same as the US Open. Maybe even better,” said del Potro, who’s fallen to 141st in the rankings after three operations on his left wrist, which he uses for a two-handed backhand.

“I didn’t expect to reach the final, beating Djokovic and Rafa,” del Potro said, “but I did, and I get a medal, and it’s amazing for me.”