Benjamin Sesko warned he has already 'created an issue' in Man Utd dressing room

Benjamin Sesko has been told that his decision to avoid stepping up for a penalty until late in the shootout against Grimsby "will be an issue within the dressing room" as the Manchester United new boy continues to cop flack.

The Slovenian was Ruben Amorim's most expensive signing of the summer and arrives with a huge reputation. Sesko is viewed as one of Europe's best young strikers but chose not to put his hand up in the Carabao Cup loss at the League Two side until late on.

Sesko, who is yet to start a Premier League game or find the net, watched on as every outfield player stepped up. He eventually took the 10th penalty and converted from 12 yards, but much more was expected from a player signed for such a fee.

Dietmar Hamann insists Sesko has to get off on the right foot, and allowing defenders to step up ahead of him will not help his standing within the dressing room - urging him against repeating the trick.

He told CoinPoker: “Now, if you play a League Two side in the League Cup and it goes to a penalty shootout, and you cost £85million, you've got to take one of the first five penalties. You have to, because the players will look at you. The fans will look at you because it will be an issue within the dressing room, I can tell you that.

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“Because a centre-back or a full-back has to take a penalty and the star signing doesn't take one until the 10th penalty. This is what he has to be aware of because if you do one or two things like this early on in your career, the career might be finished at this club before it starts because you've got people against you. I think he has to be aware of it.

“I don't know who advises him, I don't know who he listens to, but I think somebody should have a word with him and tell him about the dynamics within a team or a dressing room or a club like Manchester United, because he mustn't do this again. If he does, as I said, it could be over before it started.”

It was later explained that Sesko, who played a full match for the first time in months, had been struggling with cramp and United were hoping to avoid using him until they had no other option. The Slovenian has continued to make do with cameos off the bench in the league.

That has hindered his ability to find the net and he's still waiting to have a major impact for the struggling outfit. Eyebrows were raised when Joshua Zirkzee was bought on ahead of him in the win over Burnley, but Sesko insists he is progressing every day as he adapts to his new challenge.

"I am getting better and faster in every training session, and I am also progressing in my football mentality every day," he said.

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