Sean St Ledger will join Millwall on loan for the rest of the season - but not until after the Lions face Leicester City at the King Power Stadium tomorrow.
The Republic of Ireland international defender has recently returned after five months out of the game with a hamstring injury and City have decided to allow him out to gain valuable match fitness after such a lengthy lay-off.
With Michael Keane performing so well alongside captain Wes Morgan and Zak Whitbread fit again after a calf problem, manager Nigel Pearson has decided St Ledger will be better off getting game time elsewhere.
The deal was done just before the loan window closed today and the 28-year-old will not be allowed to link-up with the Lions until after tonight's game or have any contact with Kenny Jackett's outfit after taking part in City's preparations for the game.
He will be available for Millwall's remaining league fixtures and their FA Cup semi-final with Wigan Athletic at Wembley.
At the end of the regular season, St Ledger will return to City and will be available for the play-offs should City secure a top six place.
St Ledger damaged his hamstring in the victory over Bristol City, in October, and twice broke down as he made comebacks in training but the problem was eventually solved after a visit to Bayern Munich club doctor Hans-Wilhelm Müller-Wohlfahrt, who uses revolutionary techniques including injecting calves' blood.
St Ledger made his comeback in the home defeat to Sheffield Wednesday.
