Tabb netted the only goal when he collected Michael Doyle's 40-yard pass and fired low past David Marshall.

Marshall then denied both Leon Best and Daniel Fox, while Kevin Thornton hit the post as Coventry dominated.

Any hopes of a Norwich comeback were dashed when first Gary Doherty and then Darel Russell were sent off for two bookable offences.

Coventry manager Chris Coleman:
"I don't think anyone would have complained had we gone on to get three or four.

"Tabby is a little diamond, and I cannot tell you how impressed I have been with him since I arrived here.

"That's back-to-back results for us now, and that is not something we have done very often this season."

Norwich manager Glenn Roeder on referee Paul Taylor:
"Some referees, this one in particular, are too quick to reach for their cards and don't show common sense.

"I don't think that was a performance he should be proud of, but knowing Paul Taylor he probably will be.

"But my players need to show me they want a future at this club - starting with game against Stoke on Tuesday."

Coventry: Marshall, Osbourne, Ward, Dann, Fox, Mifsud, Stephen Hughes, Doyle, Thornton, Tabb, Best (Simpson 87).
Subs Not Used: Ireland, Hall, Andrews, Gray.

Booked: Fox, Dann.

Goals: Tabb 6.

Norwich: Marshall, Velasco (Pearce 21), Doherty, Shackell, Bertrand, Croft (Evans 61), Russell, Fotheringham, Pattison, Camara (Cureton 27), Dublin.
Subs Not Used: Gilks, Gibbs.

Sent Off: Doherty (53), Russell (85).

Booked: Doherty, Bertrand, Russell, Fotheringham.

Att: 18,108

Ref: Paul Taylor (Hertfordshire).