Former Liverpool captain Steven Gerrard said that he was 'taught to loathe Manchester United' as a kid, while recounting his anger that led to his red card for a stamp on Ander Herrera during last season's 2-1 loss to Louis van Gaal's side.
Gerrard brought an end to a 17-year career at the Anfield club at the end of last season, and some of the details of his infamous sending off 38 seconds after coming on from the bench revealed in the serialisation of his autobiography.
"It was 38 seconds defined by anger, a kind of madness," the 35-year-old former England captain said.
"I couldn't stop myself. Without even giving myself time to think I brought my left foot stamping down on Herrera. I felt my studs sink into his flesh just above the ankle. It had to have hurt him.
"I had been taught to loathe Manchester United.
"It had taken me just 38 seconds to get myself sent off against Manchester United. Thirty-eight seconds in which I had been at the heart of every small cameo of action and ferocious display of rage."
Gerrard added that he felt somewhat "misled" by Reds manager Brendan Rodgers, who hinted in the lead-up to the match that he would be in the starting XI, only to be told later on that it would not be the case.
"It hurt me, especially because of our previous conversations and the fact that his Wednesday night text, which had been full of praise, had misled me," he said.
"I'm sure he didn't mean to give me the wrong impression but his text confirmed in my mind that I would be selected."
Liverpool travel to Old Trafford for their first match of the season against their great rivals.