The Duke and Duchess of Cambridge chose a great day to attend Wimbledon.
Prince William and wife Kate were in attendance at the All England Club on Tuesday and split their time between Centre Court and No 1 Court.
First they witnessed world No 1 and three-time defending champion Novak Djokovic fight back from two sets down to defeat Italian 10th seed Jannik Sinner 5-7, 2-6, 6-3, 6-2, 6-2 to reach the semi-finals, before hopping over to No 1 Court to watch top-ranked British player Cameron Norrie edge Belgian David Goffin in another five-set epic.
Norrie became just the fourth British player in the past 50 years to reach the Wimbledon semi-finals after coming through a rollercoaster match 3-6, 7-5, 2-6, 6-3, 7-5. The ninth seed, into the last four of a Grand Slam for the first time, will face 20-time major winner Djokovic on Centre Court on Friday for a place in the final.
The royal couple later posted on their Instagram page to pay tribute to Norrie, writing: "What a day of tennis! Fantastic to be back @Wimbledon today and wonderful to see @norriee flying the flag in the singles! Just brilliant."
As patron of the Lawn Tennis Association - the national governing body of tennis in Great Britain - the Duchess of Cambridge is a regular attendee at Wimbledon but was making her first appearance at this year's Championship.
Check out the photo gallery above for the best photos from Prince William and Kate's day at Wimbledon. To move on to the next photo, click on the arrows or if using a mobile device, simply swipe.