After spending more than three hours on the court and earning a hard-fought victory, Rafael Nadal was feeling optimistic again.

Nadal's body withstood its toughest test yet at this Madrid Open in a 6-1, 6-7 (5), 6-3 win over 91st-ranked Pedro Cachin on Monday, The Associated Press reported.

He didn't show any signs of physical limitations in a victory that earned him a spot in the round of 16 at the clay-court tournament where he is the record five-time champion.

“It’s positive, now I don’t feel that something went wrong on my body, but I need to wait until tomorrow, being 100% honest,” he said. “I am trying my best to keep dreaming. Tomorrow is another day to keep dreaming. To keep playing in front of this amazing crowd and, to me, that means everything.”

Nadal will next face 31st-ranked Jiri Lehecka. He said he needs “to find a way to be able to play days in a row and still be competitive.”
“I don’t know if I am in that moment yet,” the 22-time Grand Slam champion said. “Let’s see what can happen tomorrow."

The 37-year-old Nadal is trying to get in shape for next month's French Open. Since his latest injury layoff, he's had two matches in Barcelona and was pessimistic about his physical condition after arriving in Madrid. But he's won three more times in the capital.

Nadal again looked comfortable early on against Cachin. The Argentine rallied in the second but was broken twice while serving for the set before eventually prevailing in the tiebreaker.
Nadal didn’t look as loose in the final set, but did look tired. He wasn't as consistent with his shots but picked up three breaks to seal the victory to the delight of the local crowd in the Caja Magica.

“I took more risks in the third set, but it’s hard after so many months without competing,” Nadal said. “I hadn’t played a match like this in a long time. I don’t know how I’m going to wake up. But I’m already happy for having won three matches in a row.”
Cachin asked for Nadal's shirt after congratulating him at the net, and received the gift moments later.

Top-seeded Jannik Sinner was not at his best but had enough to defeat Pavel Kotov 6-2, 7-5. Sinner, who has been dealing with a hip issue, will face 16th-seeded Karen Khachanov.

“I have been struggling a little bit with my right hip,” Sinner said. “We’re trying to find a solution and I don’t think it’s anything serious. Sometimes I feel it more like today and some days are a little bit better."

Third-seeded Daniil Medvedev was two points from defeat before he rallied to beat Sebastian Korda 5-7, 7-6 (4), 6-3.
Fifth-seeded Casper Ruud beat Cameron Norrie 6-2, 6-4.