Image source, Getty Images
Alejandro Garnacho (second left) posed with Amad Diallo, Kobbie Mainoo and Rasmus Hojlund after Manchester United's FA Cup final win last season
Chief football news reporter
Alejandro Garnacho has a bit of history with Manchester City.
Last season, he scored the opening goal as Manchester United stunned their local rivals in the FA Cup final - later posing with the trophy along with his youthful team-mates Amad Diallo, Kobbie Mainoo and Rasmus Hojlund.
Just over two months later he was back on target at Wembley when he scored in the Community Shield against this weekend's Manchester derby opponents - the first of eight goals in his first 20 games of the season.
But then things took a downturn.
Garnacho did not face City on 15 December after being dropped along with fellow forward Marcus Rashford.
Head coach Ruben Amorim spoke about it being a selection issue following an evaluation of "training performance, game performance, engagement with team-mates".
"I pay attention to everything," he said. "The way you eat, the way you put your clothes to go to a game."
Unlike Rashford, who returned to the squad just once and did not play again before joining Aston Villa on loan in February, Garnacho was recalled immediately.
Sources said the issue came down to an interpretation of his reaction to receiving instruction as he waited to come on in a Europa League game
Amorim believed Garnacho wasn't listening. Garnacho felt he was, while watching the game unfold.
New in the job, Amorim felt he had to lay down a marker. Garnacho's speedy return - and continued presence - confirms the matter has been dealt with and forgotten.
But his performance levels have dipped. In 21 appearances since the City game, Garnacho has scored one goal and created four.
And after another frustrating performance against Nottingham Forest on Tuesday - during which he had six unsuccessful shots and was shown a yellow card for kicking the ball away in anger - his future became the focus of fan discussion.
How do Garnacho's stats match up?
Garnacho has scored four goals in 29 Premier League appearances this season - making him United's third-top scorer. He has nine goals and eight assists in all competitions
He has created 26 chances - putting him outside top 50 in the Premier League.
Garnacho has attempted 65 dribbles but only completed 20 - 75th among Premier League players.
His 68 shots in the league is the 11th highest total, but with a very low conversion rate of 5.9%.
Garnacho is in the top 10 for carries ending in shots (24) and 20th for carries ending in a chance created (15).
He has completed 30.8% successful dribbles - the lowest of any Premier League player to have attempted 50 or more.
Garnacho's possession won, interceptions, sprints and tackles have dropped under Amorim compared to under Erik ten Hag this season; but his possession won in the final third and distance covered per match stats have improved.
What's the background?
Speaking to sources around United, a few key points emerge.
Garnacho's confidence is at a low ebb. Someone with high-level coaching experience, who understands the demands players face at a club of that stature, suggests he is 'nervous'. It is a trait first spotted when he was breaking into the first team.
The Argentine is viewed as a player who is at his best when his mind is free. The belief is he is now over-thinking, meaning he snatches at chances.
United legend Paul Scholes - now a pundit - has previously described Garnacho as "scruffy" technically and said his decision-making is "really poor" at times.
It is acknowledged from sources inside the club that Garnacho is feeling the strain, and he was pictured slapping his head in frustration after one wasted shot on Tuesday.
This is the first extended dip of Garnacho's career. While to many he 'arrived' with his brilliant bicycle kick at Everton in November 2023, he actually made his debut in April 2022.
Tuesday's game was Garnacho's 132nd for United - 46 of which have been this season. If he stays injury free and remains at the club, he could become one of the youngest United players to reach 200 appearances.
All have come during tumultuous times at Old Trafford, and it is worth remembering, too, that he is just 20.
Is Garnacho £55m of 'pure profit'?
As a 'homegrown' player, Garnacho remains one of United's most valuable assets.
The Football Transfers website values him at £55m - ninth in the list of under-21 players globally.
It is a year ago since United headed towards the summer transfer window in a delicate position with the Profit and Sustainability Rules (PSR) and let it be known they would consider offers for any of their players, aside from Garnacho, Mainoo and Hojlund, who were 'untouchable'.
That status was quietly removed before the January 2025 window.
Garnacho was the subject of sustained interest from Napoli and Chelsea. Garnacho and his camp were aware of it. They also knew that while they weren't pushing him out of the door, United's hierarchy were not exactly putting the lock and bolt on.
Quite how close a deal came to being struck is not clear, but could certainly be unsettling for the player.
Garnacho went from being a central component of Ten Hag's squad to becoming part of the answer to United's PSR problems, with any fee being banked as 'pure profit'.
He could hardly be blamed for wondering if his future lay elsewhere.
A 'square peg' in Amorim's system?
- Image caption,
Image source, Opta
Garnacho's 'heatmap' under Erik ten Hag in the Premier League this season
It is clear Garnacho's best position - and his preferred role - is as a wide attacking player.
But it is a role that does not exist in Amorim's formation, where wing-backs provide the width and inside forwards the penetration.
He is trying to adapt - and Amorim's selections and recent quotes suggest he wants him to - but the process is not straightforward.
On Friday, he said: "I think he is doing the right things. Like any player in our team, has to choose better, especially in the last third.
"Garnacho is improving the way he defends, the way he runs. He needs more goals and assists, that is clear. He wants to improve and is improving but is not in a great moment."
Last month, the Portuguese said it was "clear" Garnacho had talent but he needed to "learn to play a little bit in a different position".
"He's finding the best way to play in this system. He's improving during training, and I think he changed the way he sees himself. I am trying to find the best position for him."
The decline in his effectiveness has been spotted elsewhere. After being a regular in the Argentina squad as part of the Copa America win last summer, he was left out for the most recent World Cup qualifiers.
Image source, Opta
Garnacho's 26 chances created in the Premier League this season - including his only assist
Garnacho is not hiding on the pitch, but does shun the limelight off it.
He has a young partner and child at home, with his wider family in Spain.
Sources told BBC Sport Garnacho is dedicated and showing maturity - reporting to training an hour before Amorim's start time of 10am for individual gym work.
Though he does not tend to do many external interviews, he has worked hard on his English since he arrived in September 2020 and spent his first weeks in isolation because of Covid-19.
He does plenty of 'meet and greets' with fans and will sometimes stop on the way home from training to offer boots or other memorabilia to young fans.
Garnacho is starting to gravitate towards the older players in the group. Within the squad, he is no longer recognised as a new kid on the block.
Going into Sunday's game there are questions around his future, but only time will tell if that lies at Old Trafford or elsewhere.