Parker Wants To Make Up With Fans
But the player insists he was injured and didn't want to end up on a stretcher going for a ball that was away from the danger area.
Parker: "I know I should not have done what I did at St James's Park on Saturday and I can only say sorry and apologise to our supporters.
"It was all heat-of-the-moment stuff when the passion and the pressure both boiled over.
"All I can say in my defence is that all the players want to win for these magnificent fans we have got here at Newcastle United.
"We know we were nowhere near what we should have been against Sheffield United on Saturday and that we did not apply ourselves.
"We have come in for a lot of criticism since Saturday but we have stuck together and we got our reward at Watford and now we are really looking forward to take things on from here.
"The match at Vicarage Road was a very important victory for us to get into the last eight of the Carling Cup on a long night when not a lot of football was played.
"Watford made it very difficult for us by putting the ball in the air for a lot of the time. But when we did get it down and play a bit, we seemed to cut them open.
"We should have been a couple of goals up at half-time, but it wasn't to be and this put a lot of pressure on us throughout the second half.
"Even so, we could still have won it in normal time when Damien Duff hit the post."