A wonderful Cup game this, with neither side willing to give an inch - and containing three goals of the highest quality. United are still alive on four fronts this season, while Owen Coyle will be hoping that this performance sparks something within his team and they can dig themselves out of the hole they find themselves in in the Championship.
86' THE BALL IS IN THE BACK OF THE NET! BUT OFFSIDE!!! OH WOW!! Mahoney wreaks havoc on the right wing before cutting in and Robben-ing it at goal. Romero can all lap it away and Emnes whacks it at goal. Romero saves again, but the ball bounces to Anthony Stokes who knocks it in, but is a mile offside.
74' Mahoney skins Darmian with rather too much ease for Mourinho's comfort before winning a corner. The young lad takes the corner and Graham knocks it into the net!! BUT THE REF HAS BLOWN THE WHISTLE! Long back actually - Graham did foul Rojo in the melee.
72' Mkhitaryan runs on to a Herrera pass after good work from him, Carrick and Pogba in midfield but the cross is poor. Young gets into the book for a frustrated foul on Conway. Meanwhile Coyle takes off the excellent Conway and replaces him with Mahoney.
64' Carrick picks out Rashford with a quite incredible ball, but the striker mis-controls it! What a chance!! United are laying siege now - as you would expect but Feeney's quick feet and Guthrie's smart work are keeping Blackburn's threat very much alive.
62' OH MY! Zlatan was an inch away from scoring with his first touch! Herrera had a pop at goal after being teed up by Pogba and Zlatan's outstretched leg almost met it! As it is, goal kick for Blackburn.
61' Martial teases and torments Greer, before lifting it to the far post where Williams hacks it away for a corner. Mourinho takes the opportunity to bring on the heavy guns - Pogba and Zlatan on for Lingard and Martial
60' Blackburn move forward purposefully and win a corner, but Conway's delivery is straight to Romero. United move forward - but Lingard slips at the crucial moment as he looks to play a 1-2 with Rashford and that's the end of that
58' Emnes is causing havoc in that backline, but this time he gets penalised for handball just before he can wreak havoc. United are yet to come up with a convincing answer to the question of how to keep the Dutchman quiet.
57' United are right back, though and Mkhitaryan slips in Young with a lovely ball. The Englishman's ball rolls into the keeper as no United player makes a run into the box. Rashford and Martial are both outside the box looking for the cut back... That's certainly not what goal poachers do Marcus and Anthony
52' Mkhitaryan and Rashford rapidly exchange passes but Feeney is back to cover the Armenian and clear the danger. Blackburn try to counter but Emnes is brought down by Lingard. Yellow for the United man.
50' From it Feeney plays it off and Graham wins yet another header as he knocks it down for Conway. The adventurous left back has a pop, and a good one at that, but it's straight at Romero and the Argentine hangs on.