Leicester led 2-0. Norwich had Russell sent off in the 60th minute and then Stephen Clemence scored twice to give under fire Ian Holloway's side a win.
Elsewhere in the Championship, Jonnie Jackson scored for Colchester in a 1-1 draw at Hull. Colchester are third bottom and four points behind City.
Charlton drew 2-2 with Watford and Ipswich beat Blackpool 2-1.
In the FA Cup, Barnsley pulled off the big shock, winning 2-1 at Liverpool. The Tykes had Luke Steele in goal. Bristol Rovers also pulled off a shock beating Southampton 1-0 with an 84th minute Lambert goal.
Chelsea beat Huddersfield 3-1 and Man United beat Arsenal 4-0.