Roger Federer reached the Wimbledon Last-16 for the 18th time on Saturday and then admitted that overwhelming title favourite Novak Djokovic “deserves” to stand on the brink of history.

Djokovic can draw level with Federer and Rafael Nadal on 20 Grand Slam titles if he secures a sixth Wimbledon title next weekend. That will leave the World No. 1 needing just the US Open in September to become only the third man in history, and first since Rod Laver in 1969, to complete the calendar Grand Slam.