Former NHL star Johnson, 29, suffered a gash to his throat in the freak accident, according to witnesses.
The game between his new team the Nottingham Panthers and the Sheffield Steelers had to be abandoned.
Eye witnesses says players from both teams formed a ring around Johnson as apparently there was quite a lot of blood.
Around 8,000 fans are believed to have witnessed the horror collision between the two players at Utilita Arena Sheffield.
There’s a video circulating, I’d advise anyone to avoid watching it.
I looked it up. I’ve seen lots of genuinely horrifying things on the internet, and this tops all of it for me. I fully regret seeking it out.
I just ordered a neck guard for my beer league games.