Barkley finally clinches his dream move in £15m switch to Chelsea
Midfielder Ross Barkley has described his £15m move from Everton to Chelsea as "unbelievable" and "a fresh start".
The England player, 24, has signed a five-and-a-half-year deal with last season's Premier League champions.
Barkley, who leaves Everton after 13 years at Goodison Park, has not played for seven months because of a hamstring injury and had surgery in August.
"He's very young and has a lot of space for improvement," said Chelsea manager Antonio Conte.
"He's a good prospect but it will be very important to understand we must have patience to help him recover."
Norwich head coach Daniel Farke believes his side are ready to create "something extraordinary" against last year's FA Cup finalists Chelsea at Carrow Road this evening (5.30pm).
Blues boss Conte is expected to rotate his team for the third round tie against the Canaries, who have won two of their last three Sky Bet Championship matches but remain in the bottom half of the table.
Belgium playmaker Eden Hazard is unlikely to be involved after taking a kick to his calf during the midweek 2-2 league draw at Arsenal.
Brazil defender David Luiz is, however, set to play for only the second time since October.
German Farke said: "You can have a special day and create something extraordinary."