William and Kate will be in the royal box on Centre Court on Sunday for the men's final, where the Swiss tennis ace’s match against defending champion Novak Djokovic. The duchess, patron of the All England Lawn Tennis Club, will be making her third visit to the annual championships today. On Saturday, she sat alongside her sister-in-law the Duchess of Sussex to watch Serena Williams crash to a straight sets defeat against Simona Halep in the women's final.
Kate was wearing a powder blue 50s-style dress is from a collection by London-based designer Emilia Wickstead.
The royal couple met with senior figures from the All England Lawn Tennis Club, including head referee and former player Andrew Jarrett.
They also met with four of the club's team of ball boys and girls.
However, the couple were tight lipped about who they were hoping to see lift the trophy today.
Dave Knights, head of the service stewards at the championships, said: "They gave no indication at all about who they wanted to win."
Mr Knights, whose team is in charge of keeping order among the crowds in the packed courts, added: "They were very supportive of what we do here at Wimbledon."
He is able to draw on 32 years' experience in the Royal Air Force to make sure no one steps out of line.
"It's been a very smooth championships - the good weather has helped," Mr Knight said.
He was greeted by loud cheers from fans waiting on the path below.
Last week, Federer revealed he had recently played tennis with Kate's son Prince George, with the 20-time grand slam winner describing the young royal as a "cute boy" who had "good" technique.
According to Met Office forecaster Sophie Yeomans, weather conditions on Sunday are expected to be "mainly fine, dry and sunny".
She added: "There will be a few patches of cloud around through the afternoon.
She said there is a "small chance" of "a light bit of rain", but it is forecast to be warm with temperatures rising to 23C.
Kate watched Simona Help win the women's final on Saturday and was among the first people to congratulate the Romanian.
Halep had previously shared her hopes of seeing Kate in the royal box, and afterwards said it was an "honour" and "an extra boost" to play in front of the duchesses.