Norwich opened up a four-point lead at the top of the Sky Bet Championship with a 2-0 win against Coventry at St. Andrew's.
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Teemu Pukki and Emi Buendia combined twice for a goal each as the damage was done before half-time on Wednesday night.
Victory means the Canaries, who capitalised on second-placed Brentford's loss at QPR, have lost just once in their last nine league games.
Charlie Austin scored the winner as QPR came from behind to beat Brentford 2-1 in the west London derby.
Ivan Toney's 24th league goal of the season put the Bees ahead on the half-hour mark at the Kiyan Prince Foundation Stadium.
But on-loan West Brom duo Austin and Sam Field turned the game on its head by scoring in the space of four second-half minutes.
It condemned Brentford to a second successive loss - three days after a defeat at home to Barnsley ended a 21-match unbeaten run in the Sky Bet Championship.
They remain in second, but just a point ahead of Swansea, who also have two games in hand on both sides above them, after they beat Nottingham Forest 1-0.
Connor Roberts struck the only goal of the game at the Liberty Stadium in the 87th minute.
Bournemouth remained unbeaten under caretaker boss Jonathan Woodgate with a narrow 1-0 home win over Rotherham.
Barnsley continued their impressive few days with a 2-1 win over Blackburn at Oakwell thanks to goals from Carlton Morris and Alex Mowatt, building on their victory at Brentford on Sunday to keep their slim play-off aims alive. Adam Armstrong notched a late consolation for Rovers.
Millwall piled more misery on Birmingham boss Aitor Karanka with a 2-0 win at The Den.
Goals from Jed Wallace and Ben Thompson left the Blues 23rd in the table.