When I look back at his United career, from the start, he has never been what you would call a season-to-season consistent producer, often having prolonged drops in his form from one year to the next. Ultimately, his attitude dropped when he could have dug deep and turned into a United legend.
Here is a brief rundown of his stats (PL, then LaLiga)
2015/16: 11 apps, 5 goals, 2 assists
2016/17: 32 apps, 5 goals, 2 assists
2017/18: 35 apps, 7 goals, 5 assists
2018/19: 33 apps, 10 goals, 7 assists
2019/20: 31 apps, 17 goals, 9 assists
2020/21: 37 apps, 11 goals, 13 assists
2021/22: 25 apps, 4 goals, 2 assists
2022/23: 35 apps, 17 goals, 6 assists
2023/24: 33 apps, 7 goals, 3 assists
2024/25: 15 apps, 4 goals, 1 assist (UNITED)
2024/25: 10 apps, 2 goals, 3 assists (VILLA)
2025/26: 30 apps, 8 goals, 9 assists (BARCA)*
* Denotes current season in Spain
Totals - league appearances 327, goals 97 & 62 assists
United should get the agreed fee from Barcelona, it would be fair all around and I suppose that everybody would be satisfied with that outcome. A reduction in salary - albeit still to a very high wage - and his choice of club, city / environment, should keep the player quiet for a while at least. United need him off the books and the money going in other areas.