The Reds crept into the dying flames of the clash on November 13, with the Cottagers holding a 1-1 draw.
Fulham played most of the game during the match and it looks like the game will end with one point each.
However, 18-year-old Garnacho was brought on in the 72nd minute and had other ideas as the Argentine teen stole all the headlines with a 90+3 winning goal.
The United youngster teamed up well with Christian Eriksen before conceding Fulham goalkeeper Bernd Leno.
It was an incredibly dramatic win, bringing Garnacho’s tally for the season to three goals and two assists in seven appearances.
The former Atletico Madrid academy player only made his Manchester United first-team debut in the Reds’ 1-1 draw with Chelsea on April 28.
He quickly became an important member of Erik ten Hag’s attack, and his strike against Fulham gave them three crucial points.
Former Tottenham Hotspur manager Tim Sherwood heaped praise on Garnacho ahead of the win over Fulham, comparing him to Ronaldo.
He said (via Show):
“I think he sounds straightforward. Listen, he has a long way to go but he’s the closest person I’ve ever seen to Ronaldo.
Before winning, United took the lead through Eriksen in the 14th minute after the Dane met Bruno Fernandes’ low cross to score.
Fulham fought back and equalized in the 61st minute thanks to former Red Devils player Dan James.
However, it was Garnacho who was the talk of the town after the encounter at Craven Cottage.
In 18 minutes, the Argentinian completed five passes and was a nightmare for Fulham right-back Bobby Decordova-Reid.
Here are some of the reactions of fans on Twitter to the teenager’s phenomenal display as United took the final breathless win:
Manchester United enter the 2022 FIFA World Cup tournament in fifth place
Manchester United are chasing their target of finishing in the top four, and Garnacho’s goal put them three points behind fourth-placed Tottenham Hotspur.
The Reds have won eight, drawn two and lost four of their 14 matches.
They are on 26 points and know that they are one of the sides competing for a place in the UEFA Champions League.
A draw for Ten Hag’s side would be a huge setback as Newcastle United and Tottenham both win at the weekend.
Currently, Manchester United will take a break after a busy schedule ahead of the World Cup.
Their next match will be a friendly against Cadiz in La Liga on December 7.