Bristol City caretaker boss Keith Millen was unhappy with Nathan Tyson's tackle on keeper Dean Gerken, while Billy Davies defended his striker after a 1-1 draw at Ashton Gate.
Millen felt Tyson was fortunate not to see red for his challenge that saw Robins goalkeeper Dean Gerken stretchered off late on.
Paramedics were called to attend to the goalkeeper, who was carried to the dressing room in a neck brace and later taken to hospital with a suspected damaged shoulder.
"From my position, I thought Dean was always favourite to get the ball, and it may have been a red-card offence," said Millen.
"I'm not saying there was any malice intended, but the challenge was definitely late and caused us a lot of problems. When you lose your keeper late on in a game that is close, it is always worrying."
Giant striker Stefan Maierhofer, on loan from Wolves and on the pitch as one of three already-used substitutes, was quick to volunteer to take over between the posts.
Forest failed to test him during eight minutes of stoppage-time, and Millen was pleased to see the loan signing show such initiative.
"Stefan is 6ft 7in tall, so I wasn't going to argue with him," he said.
"I didn't have a plan for putting someone in goal after using our substitutes, so it was a case of waiting to see who wanted to do the job.
"We protected Stefan well, and I thought we deserved a point from what was a pretty even game in which both sides created chances."
Forest boss Davies was pleased with the point, but did not share Millen's view of Tyson's challenge.
"From my position in the dug-out, I thought Nathan was fully entitled to go for the ball," said Davies.
"He is not the type of player who would set out to injure an opponent, and, although I will be interested to see the incident again on video, I thought he had every chance of winning possession.
"It was a great point for us against a team who have done really well since Keith Millen took charge, and I thought we edged it on chances.
"While we face a huge task to catch the top two, I am delighted that we are even challenging the likes of Newcastle and West Bromwich Albion, and if we can cement a play-off place, it will be a terrific achievement."