Alex Tettey is a 'major' injury doubt for Norwich City's Capital One Cup fourth round trip to Manchester United (7:45pm).

The Norwegian international suffered an ankle injury in the closing seconds of the Canaries' Premier League draw against Cardiff. Ricky van Wolfswinkel is still nursing his foot problem but Mark Bunn is likely to feature if he suffered no adverse reaction to a return to training yesterday after missing out against the Bluebirds with a wrist injury.

'If Mark is fit, then he will come into contention,' confirmed Hughton. 'We have two main doubts, which will be Ricky and Alex, who took a whack at the end of the game. At the moment both are more a case for concern because of the quick turnaround between these two games.

'Alex took a heavy whack just above his ankle and I would say he is very much a doubt for the cup game. We'll see how he is over these next few days. We won't be making lots of changes but I want to use the squad.'

Young midfielder Josh Murphy was also in the travelling party who flew north yesterday afternoon after his goalscoring senior debut in the previous round's extra-time win over Watford. Hughton knows the scale of the task ahead at Old Trafford but believes Norwich's recent away displays prove they can cause the hosts' problems.

'If you look at how we played, both in the win at Stoke and even Arsenal, it tells you we want to have a major say in the game,' he said. 'Winning matches becomes a habit and we would settle for any type of victory right at this moment. We know our main priority is doing well in the league, but one game leads into another. For us to get a win at Old Trafford would be a big ask but also a big achievement. Any result we get there would give us a real lift.'