Premier League leaders Manchester United mantained their 100 per cent record after substitutes Marcus Rashford and Marouane Fellaini helped to spare the blushes of Romelu Lukaku who missed a penalty.
United were frustrated when Lukaku's spot-kick was brilliantly kept out by Kasper Schmeichel early in the second half.
But 19-year-old Rashford connected with Henrik Mkhitayran's corner after 70 minutes shortly after being sent on to replace Juan Mata. And Fellaini, another switch from Jose Mourinho, sealed the points when he got a touch to Jesse Lingard's cross-shot with the outside of his right knee.




The result means United have won their first three matches – just as they did last season.