Manchester United tumbled out of the Premier League's top four as Jay Rodriguez's first goal in 50 league games earned bottom club Burnley a precious point at Turf Moor.
For the second game running, United dominated the play and had most of the chances, with Paul Pogba putting them ahead with his first goal of the season.
But just as against Middlesbrough in the FA Cup, the visitors were made to pay for their profligacy.
On this occasion, they had two first-half goals disallowed, while Nick Pope made excellent saves to deny Marcus Rashford, Edinson Cavani and Raphael Varane.