Sad news in the hockey world ... New York Islander legend and Hall of Famer Mike Bossyhas passed away after battling lung cancer.
He was only 65.
The right winger -- who's the all-time leader in average goals scored per regular season -- announced his diagnosis last October on TVA Sports, a Canadian network he worked for at the time.
"Today, it is with great sorrow that I have to withdraw from your screens, for an obligatory break," Bossy said.
"A necessary stop during which I will have to receive treatment for lung cancer.