Sounds like BASEketball.

That hockey goalie everyone is referring to played for the Caps. Pete Peters, I believe. That was a harrowing night. I later heard that if the medical personnel were on the other side of the arena where Peters was, he would have bled to death right there on the ice. And you're right, the other NHL goalies started wearing neck protecters as a direct result. But as I recall, it was a completely freak accident, nothing deliberate about it.

It was Clint Malarchuk, a onetime Caps goalie, though that incident occurred when he was with the Sabres

Oops. I knew it was one of those two. My memory's getting worse as I get older.