Paul Warne ponders another Rotherham United signing after Rarmani Edmonds-Green blow
If the 23-year-old loanee is ruled out for any length of time, Warne may seek to bring in a replacement ahead of the 11pm deadline despite already having plenty of rearguard cover.
He said after watching two Michael Smith goals settle the contest at Gresty Road: "I might need another defensive player, although I have got Joe Mattock and Tolaji Bola, neither of whom made the squad today, plus Angus MacDonald is coming back."
Wes Harding, who replaced first-team regular Edmonds-Green in the 79th minute, is also a centre-back option.
Edmonds-Green sustained hamstring damage on the heavy surface at Crewe and will be scanned tomorrow morning.
"He's very sore," Warne said. "The early prognosis isn't very good so I think we're going to be missing him for a big chunk of our run-in. These pitches take their toll on the players' bodies."
The Millers leapfrogged Sunderland and Wigan Athletic to reclaim pole position, with the Black Cats' 6-0 loss at Bolton spelling the end for their manager, Lee Johnson, who was sacked this evening.
Warne is pleased to be at the head of the rankings again, but played down its significance.
"I say this all the time, there will be weeks where we lose and everyone else wins," he said. "That's just what football is. You can't win every single week. The top six aren't going to win every single game.
"Today, the league looks favourable, but we play on Tuesday night (at Doncaster Rovers) and it could turn the other way."