Adam Yates inherited the yellow jersey of the Tour de France after Julian Alaphilippe was hit with a time penalty at the end of a stage five which was won by Wout van Aert in Privas.
Van Aert won the 183km stage from Gap in a sprint finish but the drama came after the race was over, when commissaires took 20 seconds off Alaphilippe for an illegal feed inside the final 20 kilometres.
The decision saw Mitchelton-Scott’s Yates, who began the day four seconds down, elevated into the race lead as he became the ninth Briton in history to don the yellow jersey.
There was also an Irishman in green as Sam Bennett, beaten in the sprint by Van Aert, at least did enough on the day to move clear of former three-time world champion Peter Sagan in the points classification.
Alaphilippe’s Deceuninck-QuickStep team-mate now leads Sagan by nine points, becoming the first Irishman to wear green since Sean Kelly won the points classification for the fourth and final time in 1989.