Manchester United have two players to exploit Man City weakness after Viktoria Plzen win

Ruben Amorim has been true to his word in giving chances to all of his Manchester United players, but the longer he spends in the Old Trafford hotseat the closer he must be to understanding his strongest team.

Some selection decisions have certainly become a little clearer after a crucial 2-1 win against Viktoria Plzen in the Europa League that owed a lot to the head coach's own ability to change a game. Some of his starting XI in the Czech Republic didn't exactly enhance their claims for more regular action.

Rasmus Hojlund was the two-goal hero, coming off the bench to turn the game around, and his 34-minute cameo provided a stark contrast with Joshua Zirkzee, who played 56 minutes as centre-forward, then five more behind Hojlund before his evening came to an early end.

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Zirkzee gave the ball away 16 times in the first half and some of his general play was just so tardy. There were flashes of quality, the odd moment of smart hold-up play, but it was nowhere near enough.

The £35m striker gives the impression of someone strolling through games. He plays like he's playing an age-group game against youngsters shorter and slower than he is. It can give the illusion of being just a little too casual and that simply doesn't fit into Amorim's high-octane style.

Zirkzee's double against Everton was encouraging, but it might just prove to be a red herring. He doesn't press with enough intensity and doesn't offer enough energy. It's difficult to see how he has a future in this side under Amorim, even if he does offer flexibility as a striker or as one of the No. 10s.

The contrast with United's attack when