After Man Utd suffered consecutive defeats in the Premier League, followed by a loss at Bayern Munich in midweek, the only goal at Turf Moor that will have lifted their mood came on the stroke of half-time, somewhat against the run of play, but in glorious fashion.
Jonny Evans, who was appearing for Man Utd in the Premier League for the first time since 2015, found Fernandes on the right corner of the Burnley six-yard box with a lofted pass that the midfielder volleyed first time inside the far post on 45 minutes.
Burnley had had two good chances to go ahead, both through Zeki Amdouni. First the forward headed goalward, but Andre Onana saved well in the 10th minute. Then six minutes later, Amdouni was sent clear but could only find the far post from an angle.
Evans thought he had scored on his 200th appearance for the club when he headed in a corner in the 25th minute. But the goal was overturned by referee Tony Harrington as Man Utd forward Rasmus Hojlund was interfering with Burnley goalkeeper James Trafford from an offside position.
Burnley struggled to create many clear-cut chances after the break, with Hojlund coming closest to scoring the next goal, the Danish striker an inch from getting a touch on a fierce Diogo Dalot cross.
Burnley substitute Sander Berge failed to get a clean header from a corner with Onana stranded in the 82nd minute and, with Evans marshalling the United defence well, that was the Clarets’ only real chance.
A third win of the season lifts Man Utd to eighth place with nine points, while Burnley drop to the bottom of the table with one point.