Original: In 1990 , Sergei Makarov of the Calgary Flames became the oldest player , at age 31 , to win the Calder , even though he had played for the '' unofficially '' professional team HC CSKA Moscow ( the '' Red Army '' team ) in the Soviet Union .
Simplified: In 1990 , Sergei Makarov of the Calgary Flames became the oldest player , at age 31 , to win the Calder , even though he had played professionally in the Soviet Union as a member of HC CSKA Moscow .