Wimbledon organisers are giving Serena Williams "as much time" as possible to get fit to play the doubles event alongside sister Venus, tournament director Jamie Baker said on Friday.

The seven-time champion played her first match on Centre Court in four years and gave a tremendous account of herself before going down to 20-year-old Australian Maya Joint.

Serena Williams’ Wimbledon appearance in women’s doubles with sister Venus is in doubt because of a knee injury