Match ends, Norwich City 0, Chelsea 0.
Norwich City 0-0 Chelsea
Championship side Norwich held a much-changed Chelsea to a goalless draw to earn an FA Cup third-round replay.
The hosts had the better of the first half without creating a clear-cut chance, Josh Murphy drilling well wide, while Alex Pritchard could not capitalise on an error from the returning David Luiz.
Premier League champions Chelsea improved after the break with William stinging the hands of Angus Gunn and Davide Zappacosta volleying just wide late on.
Murphy's volley was also deflected wide for Norwich after Willy Caballero's poor punch but neither side came close to a breakthrough.
Antonio Conte brought on club-record signing Alvaro Morata for the closing stages but the out-of-form striker did not have time to make a difference.
It means a replay at Stamford Bridge - in the week commencing 15 January - for the Canaries, who are 13th in the second tier.
Missing a trick?
Chelsea unsurprisingly made nine changes for the tie, with only Gary Cahill and Tiemoue Bakayoko keeping their places from the draw at Arsenal on Wednesday.
What was more surprising was players such as Cesar Azpilicueta, Marcos Alonso and N'Golo Kante did not even travel to East Anglia, with Conte opting for a bench that included four players aged 18 or younger.
With the Premier League beyond their reach and a Champions League last-16 tie against Barcelona to come, many would suggest the FA Cup represents Chelsea's best chance of a significant trophy this season.
Brazilian centre-back Luiz endured a tough first 45 minutes, losing the ball on the edge of his box after taking too long and getting a yellow card for a late challenge on James Maddison.
He looked more assured in the second half and struck a trademark free-kick narrowly over as Chelsea searched in vain for a winner.
Meanwhile, other fringe player such as Kenedy, Pedro and Michy Batshuayi failed to stake a claim for a more regular starting berth.
Goal-shy Canaries lack killer edge
While this result in isolation will be seen as a success for Norwich, it did highlight the lack of goal threat in their side.
It was not for want of trying - Murphy, Pritchard and Maddison all troubled the Chelsea backline at times but failed to really test Argentine Caballero.
Daniel Farke's side have averaged just one goal a game in their 26 Championship matches this season. Portuguese forward Nelson Oliveira was left out with an extra defender preferred, and it did not make them a potent force.
However, they will be in the hat for Monday's draw for the fourth round, which they have not reached since 2013, and get a second chance against last season's FA Cup runners-up.
'I'm a big believer in the cup'
Norwich City manager Daniel Farke: "To be honest I'm a bit disappointed it was not a win for us. We had an outstanding game and in the first half we dominated, and didn't give a chance away.
"It was pretty close to a celebrating day, so I praise my lads, but we are a bit sad that we didn't win. It was important to be good in possession, especially against a good possession team like Chelsea.
"A replay is a good thing for the club. Maybe it doesn't help us for the league but I'm a big believer in the cup. Today it was a bigger chance to beat Chelsea than in the away game, but we will try everything."
Chelsea manager Antonio Conte: "It's a bit frustrating. We knew the difficulty of the game. When you play away in this competition it's not easy. It was a pity, but [we had] great commitment from our players. We tried to win the game but we must accept the final result.
"In the first half we had difficulty in attack but in the second half we created chances to score.
"We have to play another game - the schedule is busy.
"Norwich deserve to have another game. For us it's not simple to add another game in the schedule. These are the rules though."
- 31HanleyBooked at 76mins
- 27TetteyBooked at 86mins
- 21PritchardSubstituted forWildschutat 87'minutes
- 11MurphySubstituted forOliveiraat 83'minutes
- 30David LuizBooked at 41mins
- 24CahillBooked at 62mins
- 16KenedySubstituted forMusondaat 78'minutes
- 23BatshuayiSubstituted forMorataat 74'minutes
- 11PedroSubstituted forSterlingat 89'minutes
- 37dos Reis Carvalho
- Stuart Attwell
- Shots on Target
Second Half ends, Norwich City 0, Chelsea 0.
Corner, Norwich City. Conceded by Antonio Rüdiger.
Attempt missed. Davide Zappacosta (Chelsea) right footed shot from outside the box is close, but misses to the right following a corner.
Corner, Chelsea. Conceded by Jamal Lewis.
Attempt missed. Charly Musonda (Chelsea) right footed shot from outside the box misses to the left. Assisted by Willian.
Offside, Chelsea. Daniel Drinkwater tries a through ball, but Álvaro Morata is caught offside.
Substitution, Chelsea. Dujon Sterling replaces Pedro.
Attempt saved. Davide Zappacosta (Chelsea) right footed shot from outside the box is saved in the top right corner.
Pedro (Chelsea) wins a free kick on the left wing.
Foul by Ivo Pinto (Norwich City).
Substitution, Norwich City. Yanic Wildschut replaces Alex Pritchard.
Alexander Tettey (Norwich City) is shown the yellow card for a bad foul.
Pedro (Chelsea) wins a free kick in the defensive half.
Foul by Alexander Tettey (Norwich City).
Offside, Chelsea. Tiemoué Bakayoko tries a through ball, but Davide Zappacosta is caught offside.
Substitution, Norwich City. Nélson Oliveira replaces Josh Murphy.
Hand ball by Josh Murphy (Norwich City).
Attempt saved. Daniel Drinkwater (Chelsea) right footed shot from outside the box is saved in the top right corner.
Foul by Tiemoué Bakayoko (Chelsea).
James Maddison (Norwich City) wins a free kick on the left wing.
Offside, Chelsea. Antonio Rüdiger tries a through ball, but Álvaro Morata is caught offside.
Attempt missed. Josh Murphy (Norwich City) left footed shot from outside the box is high and wide to the left. Assisted by Alex Pritchard.
Substitution, Chelsea. Charly Musonda replaces Kenedy.
Attempt missed. David Luiz (Chelsea) right footed shot from outside the box is just a bit too high from a direct free kick.
Grant Hanley (Norwich City) is shown the yellow card for a bad foul.
Tiemoué Bakayoko (Chelsea) wins a free kick in the attacking half.
Foul by Grant Hanley (Norwich City).
Substitution, Chelsea. Álvaro Morata replaces Michy Batshuayi.
Corner, Chelsea. Conceded by Jamal Lewis.
Foul by David Luiz (Chelsea).
Josh Murphy (Norwich City) wins a free kick in the attacking half.
Tiemoué Bakayoko (Chelsea) wins a free kick in the defensive half.
Foul by James Maddison (Norwich City).
Corner, Norwich City. Conceded by David Luiz.
Attempt missed. Josh Murphy (Norwich City) left footed shot from the centre of the box misses to the right following a set piece situation.
Foul by Kenedy (Chelsea).
Alex Pritchard (Norwich City) wins a free kick on the right wing.
Foul by Willian (Chelsea).
Tom Trybull (Norwich City) wins a free kick in the attacking half.