Jose Mourinho must have thought he was on to a winner when Zlatan Ibrahimovic scored four goals in his first four Premier League games at Manchester United.
The 35-year-old joined on a bosman transfer in the summer and made a sensational start, even scoring an overhead kick on his debut and the winner against Leicester City in the Community Shield.
Since scoring in the defeat to Manchester City last month, though, Ibrahimovic has been poor and found the back of the net just once in eight games across all competitions.
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Calls are now being made for the Swede to be dropped, especially so following United's 4-0 thrashing against Chelsea on Sunday, where he looked far off the pace.
Arsenal legend Ian Wright has become the latest to criticise Ibrahimovic, using two words to describe the striker on BBC Radio Five Live recently: a passenger.
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He said, per Manchester Evening News: "Zlatan Ibrahimovic needs to look at himself. Wayne Rooney has been given so much stick this season with the way that he has played.
"Ibrahimovic is a great player but he isn't playing anywhere near as well as he was at the start of the season.
"He hasn’t been able to make me think he will be able to help them turn it around. He is a passenger."
Concerns have emerged over Ibrahimovic's age and whether he's capable of producing the goods in the Premier League - widely regarded as Europe's toughest division.
Ex-United defender Gordon McQueen even went as far to compare Ibrahimovic to an "old man playing football" recently, claiming he's done very little since joining on a free.
"Ibrahimovic has done nothing so far and looks very poor," the former defender explained. "He looks like an old man playing football.
"He might have got 50-odd goals in France last season, but it's an inferior league to the Premier League and he is proving it this season.
"There is nothing like our league for pace and intensity, and he is finding it out the hard way."
It's Ibrahimovic's finishing that's letting him down most, according to McQueen.
"Of course, it would help if he got some good crosses from the wings," he added, "but he's not making the most of the chances he does get and doesn't seem able to find that yard of space where it really counts.
"It is not a lack of effort, I wouldn't accuse any Manchester United player of that, I just think he is not good enough, it's as simple as that.
"There is no chance of him getting 30 goals this season. He will do well to reach double figures the way things are going.
"He scored a few at the start of the season, but it's gone quiet for him and he isn't able to bully Premier League defences as he could in France and elsewhere."
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