'I don't know what he's doing' - Rio Ferdinand gives ominous verdict on Benjamin Sesko as Manchester United legend urges Ruben Amorim's side to help £72m striker after first two games

The Red Devils invested £74 million ($100m) in Sesko when a protracted search for a new No.9 led to them completing a big-money deal with RB Leipzig. The Slovenia international, however, is yet to live up to his full potential, as he has featured from the bench in the club's first two Premier League games of the new season.

Sesko made his competitive debut for United in their first match of the campaign against Arsenal, appearing in the final 25 minutes of the match. He then played for 37 minutes in their 1-1 draw against Fulham. The lack of opportunities under Amorim has left Ferdinand worried as the ex-England star expressed his concern over Sesko's growth at Old Trafford.

Speaking on his Rio Ferdinand Presents show on YouTube, the 46-year-old said: "Get the ball into him. He isn’t going to be an easy day’s work. Get it into him and make them defend. But we are playing it around him. Sometimes it’s like really basic, fundamental things. Get it into someone who can cause problems but we go against that. So that was my main concern, you are not getting to see who he is.

"I would rather you play it into him and he look rubbish so we know what we’ve got because, right now, I don’t know what he is or what he’s doing. I’m not pointing the finger but you have got to help your team-mates find their feet in the team."

United face Grimsby in the second round of the Carabao Cup on Wednesday before hosting Burnley in the Premier League three days later and Sesko will hope to start at least one of those games as he bids to prove himself to Amorim.