Roger Federer of Switzerland plays a forehand shot during the Men's Singles first round against Giodo Pella of Argentina on day one of the Wimbledon Championship at All-England Lawn Tennis & Croquet Club, Wimbledon, England, on June 27, 2016. [Photo/VCG]

Federer's next appointment will be with British qualifier Marcus Willis, ranked 772nd in the world, on Wednesday.

"It's a great, great story and I'm very, very excited to be playing him actually. It's the best story in tennis for a while," Federer told reporters when asked about playing Willis, a tennis coach who survived six rounds of qualifying.

"It's going to be a great atmosphere."

While Federer was more than happy for Willis to take the spotlight after his win over Ricardas Berankis, he was more concerned with his own form and fitness after arriving at Wimbledon without a title in the first six months of the season for the first time since 2000.

"Time heals a lot of problems, a lot of issues," Federer said. "It's another day, another step in the right direction. It gives me confidence as I hopefully move forward.

"I've worked as hard as I possibly could since February. My big goal was to not miss Wimbledon, to be here, hopefully at 100 percent. Don't know yet if I am. But I'm definitely here winning in straight sets in my first round against a good player."