The Queen has sent her "warmest congratulations" to 2012 Tour de France winner Bradley Wiggins.
She praised his historic achievement of becoming the first Briton to win the most prestigious endurance race in cycling.
There have been calls for Wiggins to be awarded a knighthood, with bookmakers offering 2/1 that he will become Sir Bradley before the end of next year.
In her message, sent on Monday when the rider returned to the UK and released on Tuesday, the Queen said: "I send you my warmest congratulations on becoming the first British cyclist ever to win the Tour de France.
"Your historic achievement of claiming overall victory in this prestigious event is a great testament to the efforts of you and your team-mates."
Wiggins will be competing for an Olympic medal in the men's cycling road race which starts and finishes in The Mall on Saturday and will pass Buckingham Palace.
The Prince of Wales and Duchess of Cornwall will watch the riders set off.