Full-time score: Manchester United 2-0 Derby County
- Jesse Lingard's wonderful strike broke Derby's resilience after 84 minutes.
- Romelu Lukaku, brought off the bench at half-time to replace Henrikh Mkhitaryan, sealed the win with his 16th goal of the season on 90 minutes.
Manchester United have Jesse Lingard to thank once again; his superb strike finally broke Derby's resistance and Jose Mourinho's side march on to the fourth round.
Full-time: Manchester United 2-0 Derby County
And Lukaku seals it! It's wonderful centre-forward play from the big Belgian, who pulls the ball out of the air and flicks it inside his man to break a yard clear. He is joined by Martial, finding the Frenchman who draws in Derby's sole defender back before returning the ball to United's top scorer. He drills low, with Carson getting something on it, but not enough to keep it out.
Goal! Manchester United 2-0 Derby County (Romelu Lukaku, 90)
That is eight goals in 10 appearances for Lingard. Most of those outstanding, too.
Lingard has done it again! He has scored some wonderful goals this term but that is probably the best of the lot. Martial feeds Pogba, who flicks a pass into the feet of Lingard on the edge of the box. His first touch is excellent, setting himself up to lash a wonderful effort across goal and right into the top corner. Unstoppable.
Goal! Manchester United 1-0 Derby County (Jesse Lingard, 84)
And here's Derby's final change, Mason Bennett is on for Lawrence.
Jose Mourinho is making his final change and it is Marouane Fellaini on for Rashford. Just over 10 minutes of this match remaining.
And another chance spurned. Lingard stings Carson's palms with the ball breaking to Pogba on the edge of the box. It comes to him quickly, but with the goal open, he should be scoring. Instead, he screws a wretched effort wide.
United hit the post again! This one wouldn't have counted anyway though; Lukaku's header comes off the base of the post but he had strayed offside after some excellent work from Martial down the left.
Martial almost sneaks through and Keogh and Pearce both have to step in to halt him just as he is about to pull the trigger.
Now Rashford hits the post! It's another effort coming in from the right, hit superbly across goal but it comes back off the inside of the post.
Another stop from Carson! Pogba spreads play beautifully to Rashford, who drops a stepover to beat his man coming in from the right. He takes the shot on with his left, smashing a vicious effort on goal but the Derby goalkeeper is behind it.
So close from Pogba! Great play from Lindelof who creeps inside his man with a neat flick out on the right before sliding a clever ball across the edge of the box for the Frenchman. He takes the shot on first time, looking for the far corner, but it creeps just wide of Carson's post.
And United will make one two, Anthony Martial enters the fray having replaced Mata.
Here's Derby's first change, Matěj Vydra is on for Winnall.
Lingard has been the man to turn to for an important goal recently but he has just lifted one well over the bar.
One pass too many for United. Herrera initially does well to flick it inside to Lukaku who returns it to the Spaniard but instead of taking the shot on, he looks for a teammate.
Pogba has another blast from range, drawing a decent stop out of Carson. Derby are pretty much camped in their own half now; some are beginning to look a little leggy out there.
We've reached the hour mark at Old Trafford, United are getting closer to an opener.
Rashford fails to beat a one-man wall with his delivery.
Wisdom looks to have muscled Rashford off the ball but as he waits for the ball to roll out of play, the United man nicks inside him to draw the foul. United have a free kick just outside the box near the byline.
United close again! Lukaku tries to turn provider, bursting past his man down the inside right, reaching the byline before swinging a ball across goal. Mata is inches away.