Manchester United midfielder Daley Blind admits the ferocity of his derby debut at Manchester City earlier this season rattled him.

Blind insists that, this time, he won't be slow when it comes to putting the boot in.

"The biggest memory of that first Manchester derby was when I saw one of our players on the ball in the middle of the pitch when suddenly a City player came flying in," said midfielder Blind.

"He was off the ground and his leg was straight and it was only because my team-mate jumped out of the way that he was not injured severely.

"I was stood right next to the tackle. I turned to the referee and screamed, 'Hey, this is crazy'.

"But the referee didn't even blink. It was then that I realised what this derby is about and what English football is about.

"Tackles like that are allowed here and so you have to play in the same style. Now, just a few months later, it is automatic for me to tackle like that. I don't even think about getting stuck in with a straight leg."