It's a now or never for Taylor Fritz at Wimbledon

So, what are the keys for Fritz to upset the mighty Alcaraz?

It starts and ends with his service game. Through 10 days of action at The Championships, he is second on the men's leaderboard with 95 aces, 33 more than Alcaraz's 62.  

"Fritz's game is very straightforward: he needs to serve well and rock the forehand when he can," Jim Courier told Tennis Channel. "He needs to change direction with the backhand down the line to keep Carlos at bay. You don't want Carlos pouncing on you and getting to the net, and using all his creativity. You've got to suppress that with firepower."

To Courier's point, Alcaraz excels on grass due to his ability to attack the net and avoid prolonged volleys. His defense doubles as his offense — he has landed 71 percent of his returns successfully through the first five rounds, including seven outright winners. He has won 31 percent of his return games, compared to Fritz's 20 percent. The American's return game isn't anything to sneeze at, but he'll be at an instant disadvantage if he doesn't hold serve consistently. 

Lindsay Davenport believes Fritz's only hope is to use the pace and bounce of the grass to his advantage.

"He has the chance to go right through Alcaraz because of the speed of the grass, but he has to play a near-perfect match," she said. 

For the 27-year-old Fritz, this may be a "now or never" scenario, given the number of talented youngsters coming through the Tour. There are excellent odds that the likes of Jack Draper, Jakub Mensik and Joao Fonseca will be making deep runs at slams in the coming years.

No American man has won Wimbledon since Pete Sampras in 2000.