Tottenham boss Ange Postecoglou admits their on-field discipline is letting them down.
"Really pleased to get Biss back. He is such an important part of our set-up with the way he plays in that role," Postecoglou said.
"If you look at the first third of the season, from a results perspective I reckon we are still on the positive side of the ledger.
"Performance-wise, I still think we are on the positive side of the ledger, even though we've had some disappointments, but an area we need to improve is discipline. He is part of that.
"That has let us down in this first half of the year. Not just in terms of cards, but being really focused in our approach and these are the things we need to learn as a team.
"I am sure Biss probably feels himself a bit frustrated with the fact he had such a great start and now it's been disrupted, but great to have him back. Particularly against a team like City, he is going to be really important for us.
"It is kind of a lesson for him and us as a group. If you want things to run a bit more smoothly, you have to be really disciplined in your approach and really focused in what you do.
"Hopefully he comes out of this knowing for him to maintain becoming a really important part of our team, he needs to have that discipline and focus."