Sky NZ TV host Stephen McIvor has been hospitalized with a "small brain bleed'", believed to have occurred during his build-up to last weekend's Fight For Life in Auckland.

McIvor, 48, drew with Fairfax journalist Steve Kilgallon in their bout at Auckland's Trust Stadium on Saturday.

McIvor tweeted this morning: "In hospital getting checked for small brain bleed. All looks good tho !#relieved'".

He did not respond to calls for comment.

The broadcaster was taken to Auckland's Ascot Hospital on Thursday night and kept overnight for observation.

Despite knocking Kilgallon to the canvas during the second round of their bout on Saturday, and then appearing to come close to knocking the reporter to the ground later in the round, he was unable to secure an elusive boxing win.

But he said afterwards: "I'm feeling pretty good. It wasn't a loss and that's the difference.

"And the fight got called by the best commentator in the game in Colonel Bob Sheridan. I want to thank my trainer Monty Betham... he's had me in some pretty dark places in the last few weeks. I was pretty scared seven days ago."

Kilgallon told Fairfax Media he hoped his fight opponent, and mate, was alright.

"I like and respect Stephen ... he is a good mate," Kilgallon said.

"It was strange fighting against a friend, but he was the only [person] who would take the fight. To think that he was hurt is a real shock and I hope that he makes a rapid recovery."

Kilgallon said McIvor deserved "credit" for fighting after the previous results in the Fight For Life.

"He deserves a lot of credit for his attitude," he said.

Earlier this week, boxer Shane Cameron visited an Auckland hospital after feeling unwell after his loss to American Brian Minto at the same event.

Fight For Life promoter Dean Lonergan said Cameron woke on Wednesday morning "with a bad headache", and went to the hospital after his girlfriend demanded that he visit a doctor.

"The doctor checked him out, said it was most probably dehydration and treated him accordingly, " said Lonergan. "He is 100 percent."