The British number one and second seed at this year's Championships will have two days' rest on Saturday and Sunday after completing his third-round match under the Centre Court roof yesterday.
"I'll probably practise a bit longer [today]," said the 26-year-old. "Normally on the days off you practise for maybe an hour. But I'll practise for about an hour and a half and have a slightly tougher practice session. Then Sunday we'll be back to the same sort of schedule.
"I haven't played that many times on the Friday at Wimbledon, so it's a little bit new for me.
"I have no idea whether it makes any difference. Roger (Federer) always played on Monday. He had a pretty good record here. But I don't know if it's got anything to do with the two days off over the weekend."