Harry Maguire scored in the final minute of stoppage time as FA Cup holders Manchester United fought back from a goal down to beat Leicester and advance to the fifth round.
2024/2025 FA Cup
2-1
With extra time and potential penalties looming, Bruno Fernandes sent a free-kick into the box and Maguire got in round the back to head home.
The defender appeared to be offside, but with the video assistant referee (VAR) not used at this stage of the competition, it was not picked up by the officials and the goal stood.
It was some much-needed joy for Manchester United fans, who had seen their side beaten at home in five of their past seven games at Old Trafford.
They will have likely feared the worst after Leicester took the lead towards the end of a largely dull first half, with Bobby De Cordova-Reid heading in after Andre Onana's save from Wilfred Ndidi's strike bounced up kindly for him.
But Manchester United were much improved in the second half, aided by the introduction of Alejandro Garnacho.
He caused Leicester numerous problems with his runs and it was from his cross that the hosts got the equaliser, finding Rasmus Hojlund, whose shot was blocked but Joshua Zirkzee was on hand to sidefoot home moments after coming on.
From then on the Red Devils looked the most likely to grab the winner, and so it proved with Maguire's header in the third and final minute of stoppage time - though Leicester fans will feel aggrieved that it stood.
Match Events
42' Cordova-Reid is in the right place to head in the rebound! Man Utd 0-1 Leicester
68' Super sub Zirkzee scores the rebound to equalize! Man Utd 1-1 Leicester
93' Maguire nets last-minute winner! Man Utd 2-1 Leicester
Line-ups
Man Utd XI: Maguire, Bruno Fernandes, Onana, Mazraoui, Dalot, Ugarte, Amad Diallo Traore, Højlund, Mainoo, Yoro, Patrick Dorgu
Subs: Eriksen, Casemiro, Lindelof, De Ligt, Zirkzee, Garnacho, Hubert Graczyk, Collyer, Ayden Heaven
Leicester XI: Jordan Ayew, Bobby De Cordova-Reid, Ndidi, Wout Faes, Patson Daka, Justin, Soumaré, Luke Thomas, Mads Hermansen, Okoli, Bilal El Khannouss
Subs: Coady, Winks, Mavididi, Skipp, Woyo Coulibaly, Jakub Stolarczyk, Kasey McAteer, Facundo Buonanotte, J. Monga