Norwich overcame Coventry and Covid-19 disruption as a quickfire double from Kenny McLean and Jordan Hugill saw them progress to the fourth round of the FA Cup.
Goalkeeper Tim Krul and forward Adam Idah returned positive virus tests and were therefore absent against the Sky Blues, who are managed by former Canary Mark Robins.
The tie hinged on two early strikes as McLean fired home from close range after a through ball from Todd Cantwell after six minutes before Hugill doubled the hosts' advantage with a header just 80 seconds later to settle the contest.