Manchester United secured a dramatic last-gap 2-1 victory over Fulham through teenager Alejandro Garnacho, and Twitter has exploded.Fulham started brightly; Carlos Vinicius, playing in the absence of Aleksandr Mitrovic, went close in the 4th minute but was denied by the feet of United goalkeeper David de Gea.A brilliant ball from Luke Shaw found Marcus Rashford in the 7th minute, who teed up Anthony Martial.The Frenchman's off-balance shot was saved by Fulham shot-stopper Bernd Leno, but it was good build-up play from the Red Devils.Christian Eriksen grabbed the opener with his first goal for Manchester United in the 13th minute.The Dane swept in at the far post following Bruno Fernandes' deflected effort that slid into the midfielder's path and he made no mistake.De Gea made another fine stop with his feet in the 24th minute from Harry Wilson, but the Welshman had wandered offside anyway.Eriksen then lashed wide of the post after creeping into the box and meeting Fernandes' brilliant cutback in the 45th minute.Manchester United started the second half strongly, and Rashford should have put the side further ahead in the 47th minute.The English forward followed Anthony Elanga's shot, which Leno saved but could only strike at the German stopper again.De Gea was again on hand to deny Fulham in the 50th minute, denying Vinicius.The Spaniard then produced a superb save to prevent Tim Ream from heading an equalizer in the 51st minute.Fulham then did equalize in the 61st minute - Dan James notching against his former club.The Welsh winger got on the end of Tom Cairney's astute low-driven cross to restore parity and bag his first goal for the Cottagers.Joao Paulinha tried an audacious overhead kick in the 71st minute, which De Gea didn't see until late but managed to parry it away.Substitute Garnacho strode into the Fulham box in the 74th minute and was shrugged off the ball by Bobby Decordova-Reid.The Red Devils appealed for a penalty, but it was not given.Scott McTominay saw a headed effort fly over the bar from close range in the 82nd minute.Garnacho stole all the headlines in the final minute of added time with a delightful effort to shock Fulham.The Argentinian teenager played a one-two with Eriksen before firing past Leno.Here are some reactions as the 18-year-old Argentine attacker secured United a dramatic victory:centredevils.@centredevilsGARNAAACHOOOOOOO WHAT A TALENTTT THIS GUY IS OMDSSSSS98796GARNAAACHOOOOOOO WHAT A TALENTTT THIS GUY IS OMDSSSSSTrey@UTDTreyHAND GARNACHO THE BALLON D’OR I DONT FUCKING CAREEEE114441488HAND GARNACHO THE BALLON D’OR I DONT FUCKING CAREEEEUnitedMuppetiers@MuppetiersGARNACHO WHAT A LEGEND!54563GARNACHO WHAT A LEGEND!TC@totalcristianoGarnacho should get the Manchester United number 7 when Cristiano Ronaldo leaves. He has that something different about him.1345121Garnacho should get the Manchester United number 7 when Cristiano Ronaldo leaves. He has that something different about him.UtdFaithfuls@UtdFaithfulsChristian Eriksen with his FIRST goal for Manchester United!We have arrived!!!!3848373Christian Eriksen with his FIRST goal for Manchester United!We have arrived!!!! https://t.co/ppKqm1Ew7vOptaJoe@OptaJoe1 - Christian Eriksen is the first Danish player to score for @ManUtd since Peter Schmeichel versus FC Rotor Volgograd in the UEFA Cup in September 1995. Throwback.5791381 - Christian Eriksen is the first Danish player to score for @ManUtd since Peter Schmeichel versus FC Rotor Volgograd in the UEFA Cup in September 1995. Throwback. https://t.co/zCZOiw1hY2.@utdcynicalMalacia is getting cooked by Willian…159860Malacia is getting cooked by Willian…Jan Aage Fjørtoft 🏳️‍🌈 🇳🇴 💛💙@JanAageFjortoftGreat Danish Weekend in the Premier LeagueThomas Frank and his Danish boys winning at City yesterday Christian Eriksen 1-0 goal for Man UTD today201Great Danish Weekend in the Premier LeagueThomas Frank and his Danish boys winning at City yesterday Christian Eriksen 1-0 goal for Man UTD todayUtdFaithfuls@UtdFaithfulsRashford, Martial, and Bruno Fernandes have a special understanding of how to play together.They make Manchester United's attack so fluid!!! 1080117Rashford, Martial, and Bruno Fernandes have a special understanding of how to play together.They make Manchester United's attack so fluid!!! 🔥Ryan@Ry_L96Pereira is a joy to watch #FulhamPereira is a joy to watch #FulhamStatman Dave@StatmanDaveBruno Fernandes’ first half by numbers vs. Fulham:3 key passes3 big chances created 2/2 long balls completed 2/2 crosses completed 1 assist Influential. 42765Bruno Fernandes’ first half by numbers vs. Fulham:3 key passes3 big chances created 2/2 long balls completed 2/2 crosses completed 1 assist Influential. 🇵🇹 https://t.co/dR4KwJRULbSuhail@SuhailChowdharyBruno Fernandes keeps creating chances, surprised so many Manchester United fans criticise him.22134Bruno Fernandes keeps creating chances, surprised so many Manchester United fans criticise him..@utdcynicalSack Ten Hag if he ever makes this McTom/Elanga sub again22510Sack Ten Hag if he ever makes this McTom/Elanga sub againMark Goldbridge@markgoldbridgeWas always going to be Dan James202367Was always going to be Dan JamesUnitedMuppetiers@MuppetiersContinuing to move Bruno wide feels like a blind spot for Ten Hag. It’s not worked once. Not sure why we keep doing it.46948Continuing to move Bruno wide feels like a blind spot for Ten Hag. It’s not worked once. Not sure why we keep doing it.Scott Patterson@R_o_MThe lino incorrectly flags offside against Eriksen. Fulham go down the other end and score. Joke.47199The lino incorrectly flags offside against Eriksen. Fulham go down the other end and score. Joke.🏴󠁧󠁢󠁳󠁣󠁴󠁿@LJxmesLet’s have a conversation about Luke Shaw’s crossing this season150746Let’s have a conversation about Luke Shaw’s crossing this seasonCharlie Morley@CharlieMorley_Paulinha is pretty good isn’t he11Paulinha is pretty good isn’t heSamuel Luckhurst@samuelluckhurstMartinez has been #mufc's best player (again). Their player of the season so far.15321Martinez has been #mufc's best player (again). Their player of the season so far.Paddy Power@paddypowerSiri; show me hypocrisy in image form…9211Siri; show me hypocrisy in image form… https://t.co/rdxfacm11m.@utdcynicalWe let James score 3867We let James score 😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭𝗧𝗲𝗻 𝗛𝗮𝗴’𝘀 𝗥𝗲𝗱𝘀 ✍🏼🇳🇱@TenHagBalINot scored today but Martial’s all round game is top class man! We just look much more free flowing.4639256Not scored today but Martial’s all round game is top class man! We just look much more free flowing..@utdcynicalMcTom’s completed 0 passes in 25 mins1216McTom’s completed 0 passes in 25 minsMark Goldbridge@markgoldbridgeWould have been nice to have Antony or Ronaldo available for this must win game. Sure they'll be back training with their country this week though. Only so much you can do with the options Ten Hag has856Would have been nice to have Antony or Ronaldo available for this must win game. Sure they'll be back training with their country this week though. Only so much you can do with the options Ten Hag hasAB@AbsoluteBrunoHow in hell is this not a foul on Garnacho. Easily a penalty I genuinely think it’s time to scrap VAR.284How in hell is this not a foul on Garnacho. Easily a penalty I genuinely think it’s time to scrap VAR. https://t.co/Pkjez8bPNKMark Goldbridge@markgoldbridgeClear Pen on Garnacho that. Leg goes out and fouls him. VAR crap again2800141Clear Pen on Garnacho that. Leg goes out and fouls him. VAR crap againManchester United are planning to sell skipper Harry MaguireMaguire was on the bench once againReports claim Leicester City and two unnamed Premier League clubs are interested in signing Manchester United captain Maguire.The English defender has fallen down the pecking order, making nine appearances across competitions but only four as a starter.Ten Hag has continuously backed the Englishman in the media, but behind closed doors, he is reportedly prepared to sell United's skipper.He wants to fund the side's rebuild and give his preferred defensive duo, Raphael Varane and Lisandro Martinez, more competition.