Chris Clancy suffered fractures to his ribs, spine and foot, as well as a broken collarbone, when a car struck football fans at Wallsend.
"The next thing, this car stops (at) the roundabout and then he just floored it on the wet ground, lost it," he told AAP.
"It happened in seconds, but when you stand there, seeing the car coming at you, I honestly thought I was going to die. It just felt like slow motion."
Ten people were taken to hospital after the crash on Saturday morning, as supporters gathered near Newcastle to farewell the Knights before their trip to Sydney for the NRL grand final.
NSW Health said on Monday that six patients had been discharged, while four remained in hospital.
Three were in stable condition, and one patient, understood by AAP to be a five-year-old girl, was seriously but stably ill after initially being critical.
Knights supporter Indika Bambrick Samarasinghe, 18, allegedly drove the BMW that hit the crowd.
Investigators did not believe the crash was deliberate, but had earlier declined to comment on reports the car was being driven erratically.
Samarasinghe appeared in court on Sunday after being charged with nine offences, including dangerous driving occasioning grievous bodily harm, negligent driving and causing bodily harm by misconduct.
He did not apply for release and was refused bail.
The court was told the most serious charge carries a maximum seven-year jail term.
He is due back at Newcastle Local Court on October 15.
The Knights narrowly lost the grand final to the Roosters on Sunday.