Wimbledon 2016 is in its full swing. Juan Martin del Potro seems to have caught his second wind at the major tournament after beating fourth seed Stan Wawrinka. The two met at the second round of Wimbledon.

The 27-year old had to take a step back from competing for almost 3 years after undergoing wrist surgeries for both hands, The BBC notes.

But on Friday, Juan Martin del Potro showed the world of tennis that he was definitely back.

The 6’6″ tennis player first laid claim to his fame at the US Open 2009. Since then the 165th Argentine worked his way up the ranks and reached World no. 4 standing in 2010 before slowly sliding down again.

At the 2010 AAMI Kooyong Classic, then World no. 4 Del Potro had to withdraw from his match against Jo-Wilfried Tsonga after suffering from a wrist injury. He came back for the following Australian Open with his injury partially healed. He took a month off after the Australian Open to help his wrist heal.

Due to his wrist injuries, Del Potro missed a lot of international tournaments. His last appearance at the All England club was in 2013 where he reached the semifinal round before losing to Novak Djokovic. His 2013 appearance also had him suffer from a bad fall that aggravated a pre-existing leg injury.

As the Argentine started his match against Wawrinka, Del Potro struggled to keep up before claiming the succeeding sets. In the end, he triumped over fourth seed Wawrinka.

“It feels amazing. I beat one of the guys who is playing great tennis this season and I couldn’t have expected this before today,” Del Potro told The BBC Sport.

Meanwhile, Wawrinka only had good words for his opponent.

“You see already, he beat some good players. His backhand is still struggling because he cannot play completely, but on this grass the slice is still difficult,” Stan shared with ESPN.

Though Juan Martin Del Potro’s forehand remains lethal, he still needs to work on his backhand. However, Del Potro remains to be optimistic about his future.

“I’m working hard mentally, too, because I have to deal with some pains and some frustrations when I want to hit a good backhands and I cannot do it. I hope to be ready for being aggressive player on next season,” Del Potro revealed to ESPN.