Manchester United lost more ground in the battle for a Champions League spot as they were held by Leicester at Old Trafford.
The damage could have been even worse for Ralf Rangnick's men as Leicester were denied a potential winner 10 minutes from time when referee Andre Marriner was sent to the screen by the video assistant referee, with Marriner overturning James Maddison's effort for a foul on Raphael Varane in the build-up.
United could count themselves fortunate to get a point.
After a drab opening period, Kelechi Iheanacho scored a superb 63rd-minute opener when he met superb Maddison's left-wing cross with a fine diving header, which sent the ball back into the far corner.
The Foxes' advantage lasted just three minutes, with Brazilian midfielder Fred on hand to convert the rebound after Bruno Fernandes' shot had been pushed into his path by Kasper Schmeichel.
It was a disappointing outcome for the hosts, who are now three points behind fourth-placed Arsenal, having played two games more and with a trip to the Gunners, plus encounters with Liverpool and Chelsea, still to come.
Man Utd 1-1 Leicester: Ralf Rangnick believes 1-1 draw Foxes was 'okay'Rashford's torment
It says everything about the kind of season Marcus Rashford has had that even with the ill Cristiano Ronaldo, Edinson Cavani and Mason Greenwood missing this game completely, the England man was only given a seat on the bench.
Rashford's future has been debated long and hard over the last few weeks.
With a contract that is due to expire next year, although there is an option to extend to 2024, a decision over Rashford will be one of the new manager's first tasks when he takes over.
The theory is a proper break, followed by an intense pre-season and a chance to play regularly in his best position, on the left, would correct many of Rashford's problems.
At the moment though, he just needs to deliver. And, asked to occupy the number nine position when he was introduced for the final 35 minutes, Rashford continued to look ill at ease.
Rangnick provided detailed instructions as Rashford waited to come on and then, together with technical director Darren Fletcher, offered more as the game entered its final 20 minutes.
Fleetingly, it looked like Rashford's world would turn. Deep into stoppage time, he picked the ball up just outside the box and drove at the Leicester defence. But just as space opened up to shoot, an offside Anthony Elanga got in his way and the chance was gone.
Man Utd 1-1 Leicester: 'Harsh' to disallow James Maddison goal - Brendan RodgersLeicester come close to landmark win
Given Leicester's only hope of salvaging something tangible out of this injury-ravaged campaign comes through the Europa Conference League, starting with Thursday's quarter-final first leg with PSV Eindhoven, they could be forgiven their listless start.
Brendan Rodgers was buoyed by the return of Jonny Evans and Wesley Fofana, who started together in defence for the first time since last May's FA Cup final.
Given the paucity of what the home side presented them with, Leicester grew in confidence and Iheanacho should really have put them in front before the break when he screwed a shot from the edge of the area wide after the Nigerian had been left totally unmarked.
Victory would have been the first time Leicester had won successive away games at Old Trafford and the disappointment from Rodgers' perspective would be that his team did not hold on to their lead long enough.
Yet, even after United's equaliser, they carried the greater threat. Iheanacho chipped over from an acute angle after Jadon Sancho's stray backpass had sent him through before Fofana brought a superb save out of David de Gea with a header that was bound for the top corner.
Rodgers thought Maddison had won it and questioned fourth official Martin Atkinson when the goal was ruled out. He was still unconvinced even after the decision had been explained.
Player of the match
MaddisonJames Maddison
Leicester City
Squad number10Player nameMaddison
Squad number14Player nameIheanacho
Squad number6Player nameEvans
Squad number7Player nameBarnes
Squad number22Player nameDewsbury-Hall
Squad number8Player nameTielemans
Squad number1Player nameSchmeichel
Squad number3Player nameFofana
Squad number2Player nameJustin
Squad number27Player nameCastagne
Squad number24Player nameMendy
Squad number18Player nameAmartey
Squad number29Player nameDaka
Squad number20Player nameChoudhury
Line-ups
Man Utd
Formation 4-2-3-1
1de Gea
20Dalot5Maguire19Varane23Shaw
39McTominay17Fred
36Elanga6Pogba25Sancho
18Bruno Fernandes
1de Gea20Dalot5Maguire19Varane23ShawBooked at 5minsSubstituted forTellesat 45'minutes39McTominayBooked at 49minsSubstituted forRashfordat 55'minutes17Fred36Elanga6PogbaSubstituted forMaticat 75'minutes25Sancho18Bruno FernandesSubstitutes
2Lindelöf4Jones8Mata10Rashford14Lingard26Henderson27Telles29Wan-Bissaka31MaticLeicester
Formation 4-2-3-1
1Schmeichel
2Justin3Fofana6Evans27Castagne
8Tielemans24Mendy
10Maddison22Dewsbury-Hall7Barnes
14Iheanacho
1Schmeichel2Justin3FofanaBooked at 16mins6EvansSubstituted forAmarteyat 64'minutes27Castagne8TielemansBooked at 30mins24MendySubstituted forChoudhuryat 90+1'minutes10Maddison22Dewsbury-Hall7Barnes14IheanachoSubstituted forDakaat 90+2'minutesSubstitutes
4Söyüncü11Albrighton17Pérez18Amartey20Choudhury21Ricardo Pereira29Daka35Jakupovic37LookmanReferee:Andre MarrinerAttendance:73,444Live Text
Match ends, Manchester United 1, Leicester City 1.
Second Half ends, Manchester United 1, Leicester City 1.
Attempt saved. Harry Maguire (Manchester United) header from the centre of the box is saved in the bottom left corner. Assisted by Bruno Fernandes with a cross.
Corner, Manchester United. Conceded by James Justin.
Offside, Manchester United. Marcus Rashford tries a through ball, but Anthony Elanga is caught offside.
Attempt missed. Jadon Sancho (Manchester United) right footed shot from the centre of the box misses to the left. Assisted by Diogo Dalot with a cross.
Alex Telles (Manchester United) wins a free kick on the left wing.
Foul by James Maddison (Leicester City).
Substitution, Leicester City. Patson Daka replaces Kelechi Iheanacho.
Substitution, Leicester City. Hamza Choudhury replaces Nampalys Mendy because of an injury.
Fred (Manchester United) wins a free kick on the left wing.
Foul by James Justin (Leicester City).
Corner, Manchester United. Conceded by Daniel Amartey.
Foul by Nemanja Matic (Manchester United).
James Maddison (Leicester City) wins a free kick in the attacking half.
Attempt saved. Youri Tielemans (Leicester City) right footed shot from outside the box is saved in the centre of the goal. Assisted by Harvey Barnes.
Attempt missed. Bruno Fernandes (Manchester United) header from outside the box misses to the left. Assisted by Alex Telles with a cross.
VAR Decision: No Goal Manchester United 1-1 Leicester City.
GOAL OVERTURNED BY VAR: James Maddison (Leicester City) scores but the goal is ruled out after a VAR review.
Raphaël Varane (Manchester United) wins a free kick in the defensive half.
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