The Duke and Duchess of Cambridge will be in the stands at Wimbledon today hoping to cheer Andy Murray into the tournament's semi-finals.
The British number one takes on big server Vasek Pospisil, who played two five-set matches on Monday - one of which was against his older brother Jamie.
Speaking ahead of the game - which William and Kate will watch from Centre Court's Royal Box - Murray said: "He may also be a little bit fatigued, but then again he's played so much tennis that he's going to be comfortable in the conditions and in a good rhythm.
"If he is tired I'll obviously try to capitalise on that, but I won't bank on it," he added.
Maria Sharapova has reached the Wimbledon semi-finals for the fifth time in her career with a three sets victory over Coco Vandeweghe.
The Russian overcame her American opponent 6-3 6-7 (3-7) 6-2 and will play either Serena Williams or Victoria Azarenka in this week's last four.
Sharapova is bidding for her sixth grand slam and the first since her victory over Simona Halep in last year's French Open final.
The 28 year-old's only Wimbledon title to date arrived back in 2004 when she shocked Serena Williams less than three months after celebrating her 17th birthday.
Novak Djokovic has booked his place in the Wimbledon quarter-finals after completing his comeback against Kevin Anderson.
World number one Djokovic won the match 6-7 (6-8) 6-7 (6-8) 6-1 6-4 7-5 to book his place in Wednesday's last eight against Marin Cilic.
The reigning champion had fallen two sets behind against the big-serving South African, but levelled the fourth-round match when fading light brought play to a halt on Monday evening.
When play resumed today, the final set went with serve until Djokovic broke at 5-5, and the Serbian held on to win the deciding set 7-5.
Wimbledon faced criticism from angry fans on Monday night after deciding against moving champion Novak Djokovic's fourth-round cliff-hanger to finish on Centre Court.
Djokovic fell two sets behind against big-serving South African Kevin Anderson but had levelled the fourth-round match when fading light brought play to a halt on Court One.
Anderson had taken the first two sets on tie-breaks, setting up the possibility of a major upset, before improvingDjokovic battled back to make the scoreline 6-7 (6/8) 6-7 (6/8) 6-1 6-4 0-0.
Tournament officials ruled out the prospect of moving the match to finish on Centre Court, where lighting under the roof allows matches to continue until an 11pm curfew, deciding instead it would resume at 1pm on Tuesday on Court One.
A statement on Twitter from Wimbledon said: "Regarding Djokovic/Anderson not being moved to Centre: Ideally, tournament scheduling aims to finish a match on the court it started. With no urgent need to finish the match tonight, both Djokovic & Anderson were happy to resume at 1pm on No.1 Court tomorrow."
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