Lee Hughes struck a dramatic injury-time winner to keep Coventry's promotion bid on track and further dent Norwich's hopes at Highfield Road.

Coventry wasted a host of second-half chances and it seemed they were going to have to settle for a share of the spoils.

But Malky Mackay conceded a free-kick on the edge of the box, Muhamed Konjic struck an effort against the crossbar and Hughes was on hand to head the ball into an empty net to score his 14th goal of the season.

The Sky Blues, who got their play-off bid back on track with victory at home to Sheffield United on Tuesday, fell behind on the stroke of half-time to a goal from French striker Marc Libbra.

It put the Canaries, yet to win away from home this year, on course for their first win at Highfield Road since 1980 - and only their second in 69 years.

But Hughes levelled from the penalty spot six minutes after the break with his 13th goal of the season after Adam Drury was adjudged by referee Uriah Rennie to have lunged at Morocco international Youssef Chippo.

The goal sparked Coventry into life and Hughes had another chance five minutes later but, like he did in the first half with a similar opportunity, placed his header wide.

Drury then needed to be alert to hack away Jay Bothroyd's header and goalkeeper Paul Crichton, still searching for his first win in a Norwich shirt, made a comfortable save from Thompson as his goal came under the cosh.

Hughes was denied a chance to give his side the lead with 20 minutes left when Crichton superbly tipped his shot round the post for a corner.

French striker Libbra put aside his disciplinary woes to give Norwich a half-time lead.

Libbra was this week slapped with a three-game ban by the Football Association after being found guilty of misconduct following an incident with Birmingham's Darren Purse in December.

He kept his place, with on-loan Trevor Benjamin relegated to the bench, and repaid manager Nigel Worthington with a goal on the stroke of half-time.

Libbra, who earlier wasted a chance when he put a left-foot volley wide from the edge of the box, made no mistake with his second opportunity from Steen Nedergaard's cross to score only his seventh goal of the season.

But Coventry were back on level terms from the penalty spot with Hughes, subject of an audacious attempt by former club West Brom to take him back on loan, making no mistake.

Having survived a large spell of Coventry pressure, Norwich could have nicked victory 10 minutes from time through Libbra and Benjamin.

Libbra's shot was saved by Sweden international goalkeeper Magnus Hedman, who then needed to pull off a fantastic save to deny Benjamin, an early second-half substitute for David Nielsen, who unleashed an 18-yard piledriver.

It appeared both sides would have to settle for a point until Hughes' late show.

Teams

Coventry: Hedman, Quinn, Breen, Konjic, Shaw, Thompson, Safri, Healy, Chippo, Hughes, Bothroyd.

Subs Not Used: Zuniga, Guerrero, Flowers, Fowler, Betts.

Goals: Hughes 51 pen, 90.

Norwich: Crichton, Nedergaard, Mackay, Fleming, Drury, Kenton (Sutch 45), Mulryne, Holt, Easton, Nielsen (Benjamin 59), Libbra.

Subs Not Used: Green, Andy Roberts, Rivers.

Booked: Sutch, Holt, Mackay.

Goals: Libbra 45.

Att: 16,744

Ref: U Rennie (Sheffield).