Ipswich manager Paul Lambert has accused Norwich of a "lack of class" and insists he has no regrets at being sent off during the 3-0 defeat at his former club on Sunday.

Lambert was given a red card on the stroke of half-time, when he reacted angrily and had to be restrained by a police officer as a brawl broke out between the two teams, and he had an angry exchange with some of Norwich's backroom staff.

The 49-year-old's relationship with the club he left in 2012 has long been strained and he told Ipswich's official website: "It was a lack of class on their behalf; I've never been involved in anything like that at all.

"Some of the things that were said were totally out of order, and I'll fight the corner of this football club.

"There were things that shouldn't have happened, not through our doing.

"We played a really good game without getting the reward, and that's been the story of our time here. Regarding what I saw and what I've heard, I won't let this club be bullied by anyone."

Relegation-threatened Ipswich host Derby in the Sky Bet Championship on Wednesday.