City defender Jens Berthel Askou will be given every chance to impress during the rest of his loan spell at Millwall – despite being sent off on his debut.

Manager Kenny Jackett said after his side’s 2-1 defeat at Carrow Road on Tuesday night that he was keen to see the Danish centre-back in action again. Askou was shown the red card on his first appearance for the Lions – a 4-2 defeat at Leicester – and banned for three matches. The 28-year-old completes his suspension when Millwall face Doncaster on Saturday, but will then be eligible for the trip to Sheffield United on February 12 and the home game against Middlesbrough on February 19, the last day of his loan period.

“He has one more game suspension, which is Saturday, and then there are another two that he is available for,” said Jackett.

“Unfortunately he has to wait until a week Saturday.”

Jackett said he had been impressed with Askou in training.

“I haven’t seen a lot of him. He got sent off in the first game. He seems a very conscientious pro and trainer, impressive in that way, and we’ve been struggling for centre-halves in the last few weeks.”

The Millwall boss has not decided yet whether he will try to extend the loan.

“We’ve had a lot of changes, so he’s somebody I am keen to look at, definitely,” he said. “It will be good at the back end of this month’s loan to be able to assess him as a first team player to see whether he can come here and go forward.”

With City selling Michael Nelson to Scunthorpe on the last day of the January transfer window, manager Paul Lambert is down to four senior centre-backs in his squad, including the on-loan Askou.