Wimbledon champion Andy Murray on Thursday (October 17) received his OBE from the Duke of Cambridge.
Both men shared a first, as it was Murray's first OBE and Prince William's first investiture.
But, Murray was held up on his way to receive the OBE at Buckingham Palace by a random drugs test.
The Scot got an unexpected knock on the door just as he was sprucing himself up for his royal engagement.
"In the middle of a drug test hahaha I'm goin to be late!!" Murray, who is recovering from back surgery, said on Twitter.
Murray became the first British man in 77 years to win Wimbledon when he beat Novak Djokovic in July, a year after winning the Olympic gold medal.
William's role in the ceremony, which has previously been carried out by The Queen, is an extension of his royal duties, after he quit Royal Air Force.
The ceremony recognizes achievements in many areas from people across the UK.
Presented by Adam Justice