Zlatan Ibrahimovic's big ego could cause problems between him and Manchester Unite strike partner Romelu Lukaku, fears Jamie Carragher.
Ibrahimovic returned from a seven-month absence due to a knee injury in the second half of United's win over Newcastle - and promptly played as centre forward with Lukaku pushed to the wing.
Lukaku responded by scoring the final goal in the 4-1 win, and Carragher hopes that strike gives the Belgian confidence to hold his own against Ibrahimovic's huge personality.
Speaking on Sky Sports, former Liverpool and England defender Carragher said: 'Lukaku's goal could be the most important in that 4-1 victory, because, if we are talking about Zlatan and the effect he is going to have on Manchester United – and it is brilliant for United to have a player of that quality – but when he comes on, it's hilarious, he tells Lukaku to get on the right wing and Lukaku does it.