Paul Scholes believes Alejandro Garnacho must play for Manchester United under Ruben Amorim.
The winger caused a stir last week following his reaction to being substituted during the Reds' 3-2 victory over Ipswich Town. Garnacho immediately went down the tunnel after being replaced by Noussair Mazraoui following Patrick Dorgu's dismissal.
United manager Amorim addressed the issue during his press conference last week, revealing that the 20-year-old will treat the team to dinner following the incident. The Argentine made a positive contribution to Amorim's team when he came on as a substitute during United's FA Cup loss to Fulham on Sunday.
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And former Reds midfielder Scholes has shared his view that Garnacho must be involved in Amorim's team. The forward has scored eight goals for United this season but has failed to find the back of the net since November's 3-2 win over Bodo/Glimt.
"I think Garnacho has to play," he told TNT Sports before Thursday's Europa League clash at Real Sociedad. "I think there has been a little bit of criticism lately, but he's the one player who can give penetration that he will run through.
"He doesn't always make the best decisions, he doesn't always take the right finishes. He's a player that is so quick and players that separate themselves from the better players, when you're so quick, you get into certain positions, you slow yourself down almost and you see things, things come to you quite easily.
"He hasn't quite got that in his game yet. He's still a young player, but he has to play simply because of the penetration. He's the one player that can run through and score you a goal."