When Ollie Watkins made his match-winning contribution for Aston Villa at Stamford Bridge, fans were not the only ones with their heads in their hands.
A few miles up the road in north London, Arsenal supporters would have shuddered. Some will suspect their worst fears are about to be realised: the boyhood Gunners fan returning to form just in time to harm the league leaders’ title dreams again. This time, on his 30th birthday.