Duncan Keith of the Chicago Blackhawks scores a goal Monday in the second period against goalie Ben Bishop of the Tampa Bay Lightning during Game 6 of the 2015 NHL Stanley Cup Final in Chicago. Bruce Bennett/Getty Images hide caption

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Chicago Blackhawks' Brandon Saad (left) reaches for a puck as Tampa Bay Lightning goalie Ben Bishop and Cedric Paquette (right) defend during the third period in Game 3 of the NHL hockey Stanley Cup Final on Monday. Charles Rex Arbogast/AP hide caption

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Chicago Blackhawks center Antoine Vermette (80) of Canada, celebrates his game-winning goal with Teuvo Teravainen of Finland (86), against the Tampa Bay Lightning during the third period in Game 1 of the NHL hockey Stanley Cup Final on Wednesday in Tampa, Fla. Phelan M. Ebenhack/AP hide caption

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An ice hockey match between the U.S.A. and Canada in February 1936, during the Winter Olympics at Garmisch-Partenkirchen. Central Press/Getty Images hide caption

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Jarret Stoll (No. 28) of the Los Angeles Kings celebrates his team's game-winning goal in Game 7 of the Western Conference Finals. Kings defenseman Alec Martinez scored in overtime with a shot that deflected off the Chicago Blackhawks' Nick Leddy (left). Tasos Katopodis/Getty Images hide caption

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Blackhawks center Patrick Sharp lifts the Stanley Cup after Chicago's series-clinching win Monday night in Boston. Scott Strazzante /MCT /Landov hide caption

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