Jack O'Callahan was selected to represent the USA in the 1980 Winter Olympics. Three days before the Olympics, in an exhibition match against the Soviet Union, O'Callahan injured his left knee. This forced him out of the opening game against Sweden at the Olympics. He returned for the famous "Miracle on Ice" game against the Soviet Union in the first game of the medal round.
This 1980 USA hockey jersey has been signed in silver by O'Callahan and inscribed "US 1980." This jersey includes a Great Moments COA.