Four seconds after Pittsburgh's Maxim Talbot scored to make it 5-5, Newbury and Petrovicky squared off at centre ice. Petrovicky caught Newbury with a hard punch, and the Leafs centre's helmet came off. When Newbury fell back, he struck his head on the ice and was knocked cold.
"'We started fighting and he fell on his head pretty bad so, you know, sorry, but that's part of the game," Petrovicky said. "Hopefully he'll be okay.
"I wish him well."
Newbury lay motionless for 30 seconds before awakening just as Toronto's training staff began treating him. A large pool of blood collected under his head and he was strapped to a spinal board and taken for treatment. He later went to hospital for examination.
Watch the clip below.