Birmingham remain at the top of the Coca-Cola Championship after a 3-1 win over Sheffield Wednesday.
Blues went ahead following a Garry O'Connor header from a Sebastian Larsson free-kick after 11 minutes.
Wednesday levelled within three minutes through Etienne Esajas but O'Connor's second of the game and a Kevin Phillips strike wrapped up all three points. Wednesday's Jimmy Smith was also sent off for violent conduct.
Wolves remain in second after an eventful 3-2 win at Watford. Chris Iwelumo, David Jones and Michael Gray all weighed in with goals for the Black County side, while Grzegorz Rasiak and John-Joe O'Toole twice pulled the home side level.
Bristol City failed to close the gap after a 0-0 draw with lowly Barnsley. The Tykes moved out of the drop zone, leapfrogging Southampton in the process.
Cardiff managed a 1-0 win at Nottingham Forest. Ross McCormack scored with the spot-kick to leave the hosts rooted to the bottom of the table.
Sheffield United moved into fifth thanks to a 1-0 win over Preston at Bramall Lane.
James Beattie came close early on but it was Ugo Ehiogu who scored the only goal of the game shortly after half-time when he stabbed home from five yards following a scramble in the area.
Meanwhile, Burnley were held to a 1-1 draw by struggling Charlton at The Valley, Plymouth went down to an emphatic 3-1 home defeat by Ipswich with Owen Garvan scoring twice and Swansea claimed a 3-0 home win over Southampton.
Elsewhere, Norwich claimed a last-minute win over lowly Doncaster - 2-1, Coventry also scored a last-minute goal to claim a 1-1 draw with Derby and Blackpool shared the spoils with Crystal Palace in a 2-2 draw at Bloomfield Road.
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