Oddsmakers stake Juan Martin del Potro as the fourth favorite to win Wimbledon.

The fifth-seeded Argentinean cites another dynamic player as his Wimbledon darkhorse: Nick Kyrgios.

Watch: Kyrgions Wins Match, Learns Lesson

Asked the key to defeating defending champion Federer on grass, del Potro said massive-serving Kyrgios is a threat.

"It's tough to beat Roger on grass as Rafa on clay," del Potro told the media after sweeping 2017 Queen's Club champion Feliciano Lopez. "They are so strong in both surface. Marin Cilic could be one of the guys who is dangerous for them. But he lost an amazing match against Argentinian fellow [Guido Pella], which is better for us.

"But in this tournament, I mean, everything can happens. There are surprise every day. You have also big players as Kyrgios or other big names that they could be go far and be tough one for the top guys."

Eight-time champion Roger Federer and 11-time Roland Garros champion Rafael Nadal, who have combined to sweep the last six Grand Slam championships, are the top two favorites followed by former No. 1 Novak Djokovic and del Potro.

The 2013 Wimbledon semifinalist plays French shot-maker Benoit Paire for a place in the fourth round.

Del Potro, who has not dropped a set so far, described Paire as too talented.

"Benoit is a tricky player. He has too much talent," del Potro said. "He plays all the shots on court. He can play dropshots, serves and volleys, can play flat with forehands and backhands. Nobody know who's going to play.

"But Benoit also is a great player on grass. In the third round, what I said before, everything could happen. I will try to play even better than today."

Photo credit: Rob Newell/CameraSport