Complex sentence: Additionally, he never set foot in an NHL arena again until 1980 when, as the last surviving Calgary Tiger, he was asked to drop the puck for the ceremonial faceoff prior to the first game in Calgary Flames' history.
Split into simpler sentences: Additionally, he never set foot in an NHL arena again until 1980. As the last surviving Calgary Tiger, he was asked to drop the puck for the ceremonial faceoff prior to the first game in Calgary Flames' history.