Roger Federer survived a tough couple of opening sets to beat Guido Pella and reach the second round of Wimbledon

The No 3 seed came through 7-6 7-6 6-3 after he was pushed to tie-breaks by the Argentine before winning the third set fairly comfortably.

Bidding for an eighth Wimbledon title at the age of 34, Federer struggled to shake off a gutsy opponent before his class prevailed.

More importantly, he showed no sign of the back injury that forced him to miss the French Open, ending his run of 65 consecutive appearances at grand slam tournaments.

“I worked so hard to be here,” Federer said. “My hope was to be here fully fit. No one knows, not even myself. But we’ll see.”

Federer next plays world number 772 Marcus Willis of Britain.