Ruben Amorim will be watching some Man United players closely against PAOK ahead of system change

Manchester United face PAOK at Old Trafford on Thursday as they look to secure a first Europa League win of the season and end a six-game streak without winning any European fixture.

Successive draws against FC Twente, Porto and Fenerbahce have left United 21st in the 36-team Europa League table and with work to do to secure a top-eight finish and an easier and shorter route into the knockout stages.

Ruud van Nistelrooy will take charge of the side for the third of four games as interim manager, with Ruben Amorim primed to take over the reins on Monday. Amorim's final game as Sporting boss is this weekend.

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Here are five things to look out for at Old Trafford:

There has been a buzz around United since Tuesday night and Sporting's 4-1 win against Manchester City in the Champions League. That result sent shockwaves around Europe and sent Amorim's stock soaring ahead of his arrival at Old Trafford.

He has one final Sporting fixture to prepare for, but he will be watching events at Old Trafford on Thursday and beginning to assess who can fit into his tactical framework, especially if he persists with a back three.

Diogo Dalot and Noussair Mazraoui will be pressured to show the energy and intensity that have marked Amorim's wing-backs out in Portugal. Competition for places in midfield will be fierce if he continues to pick just two central midfielders. Manuel Ugarte will want to show his old boss that he is settling into life in the United engine room.

It feels inevitable that United will be linked with Viktor Gyokeres now that Amorim is confirmed. There is an obvious reason to be