Chelsea's run of four games without a win comes to an end. Diego Costa's seven games without a goal is over. You can feel the relief around Stamford Bridge.

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Danny Mills
Former England defender on Final Score

"Normally Chelsea go 1-0 up and you think that's it, it's over. But they look vulnerable now and are under pressure here still."

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Ramires runs into the corner to eat into time. Seconds remain.

Into injury time. Norwich desperately piling forward, Chelsea holding on. Two minutes of added time to go.

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Standing ovation for Eden Hazard as he is replaced by Cesar Azpilicueta. He fully deserves it as well. He's put a proper shift in.

Another Chelsea change sees Willian go off and Ramires on.

The home fans chant Jose Mourinho's name. He's still got their backing. And he'll keep it as well as long as they keep winning.

Norwich are still in this game, but only because of John Ruddy. The keeper pulls off a superb save to deny Nemanja Matic, who had danced into the box and given himself just the keeper to beat.

Off goes Pedro, on comes Oscar. Not bad to have such players in reserve. How Alex Neil would love to be able to chuck on a player of the Brazilian's class.

No sign of the changes making any difference for Norwich. They are pinned back, unable to get anywhere near the Chelsea goal. Another Blues goal looks the more likely.

Cue an equaliser now!

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Pedro shot, just wide. It was a decent effort from 20 yards that flew just past the post.

Chelsea look far more confident now. Nemanja Matic gets forward but his low cross from the left is cleared by Ryan Bennett.

Three changes for Norwich. Yes, three. On come Wes Hoolahan, Graham Dorrans and Cameron Jerome. Off go Jonny Howson, Youssouf Mulumbu and Dieumerci Mbokani. It is Alex Neil's first, second and last throw of the dice, all in one.

Another Norwich man - Martin Olsson - goes into the book for a foul on Diego Costa as he looked to break into the box. This gives Willian a great position to deliver a free-kick.

Oh, Norwich almost level as Robbie Brady shoots from 25 yards and draws Asmir Begovic into a fingertip save to put it past the post. Branislav Ivanovic rises high to head the corner away.

Chelsea almost make it 2-0 as Willian's free-kick is flicked onto the bar by the boot of Kurt Zouma.

Danny Mills
Former England defender on Final Score

"There is no real celebration from Diego Costa. It is very much job done, as if to say I know I've had my chances and should have scored already. It was more relief."  

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Garth Crooks
Former Spurs striker on Final Score

"Whatever the speculation is around Diego Costa supposedly leaving Chelsea in January, he buries this. And what I like about it is, he is cold about the finish. He take his time, turns inside the defender, and slots it home."