The 4 Nations Face-Off began Wednesday night in Montreal with Canada taking on Sweden, and fans were in for a special moment. Before the game, Canadian hockey legend and Pittsburgh Penguins icon Mario Lemieux made a surprise appearance in his hometown.

LIVE: Canada vs. Sweden updates, highlights from 4 Nations Face-Off. Why was Mario Lemieux at 4 Nations Face-Off? Prior to the start of the 4 Nations Face-Off opener between Canad

The legendary Canadian star received a thunderous ovation in Montreal as he reunited with Sidney Crosby and helped kick off the 4 Nations Face-Off.

Mario Lemieux was back in his hometown of Montreal on Wednesday night for the opening game of the 4 Nations Face-Off tournament and was welcomed with a thundering standing ovation at the Bell Centre.