Ipswich Town's promotion push took a major hit as they fell to a 1-0 home defeat to Oxford United.
Coventry City's win over Rochdale means they moved eight points clear of the Tractor Boys, having played two games less.
City have the chance to open up that gap even further when they face off against Paul Lambert's side on March, 7.
It's the third of three fixtures against City's direct promotion rivals, a period that could go a long way to deciding which division they will be in next year.
However, Ipswich are set to go into that game without striker Kayden Jackson. Town's leading goalscorer, with 11 this term, was dismissed in the closing stages of Saturday's defeat, meaning he could now face a three-game suspension.
Jackson was adjudged to have stamped on an Oxford player - with his ban covering fixtures against Blackpool, Fleetwood and City.
Lambert revealed they could appeal the decision, although he hadn't seen the incident so couldn't give a clear answer.
“Yes, if I think there are [grounds]," Lambert said.
Most Read
“Unless I’m wrong the rule is that if you lose it he gets another game on top of it.
“It’s three games as it stands for violent conduct. But, as I said before, I can’t comment as I’ve not seen it.”