Alan Shearer blasted referee Howard Webb after he disallowed a goal from Mark Viduka as Newcastle plunged back into the relegation zone.
The Magpies were trailing 1-0 to Diomansy Kamara's 41st-minute goal at St James' Park when the Australia international headed home a 50th-minute Danny Guthrie corner.
Referee Webb ruled out the strike for a foul on goalkeeper Mark Schwarzer by Kevin Nolan, although television replays suggested Shearer's side were desperately unfortunate.
Shearer and assistant Iain Dowie confronted the official as he left the pitch and the manager was still fuming when he conducted his post-match press conference.
He said: "We are bitterly disappointed at the disallowed goal. I have seen it and I can't see anything that's wrong with it."
Shearer added: "You are allowed to put someone in front of the goalkeeper - I am not aware that you are meant to get out of the way of him. I thought their player was blocking him more than Kevin Nolan was, so I am disappointed with that."