Now Playing: 1-30-14 Marketplace Tech - Playing hockey in a baseball field

All this week, Marketplace Tech has been talking about sports and technology for our "Gaming the System" series. Today, we take you to a hockey rink right about the spot that A-Rod usually stands -- that's right, Yankee Stadium. On the eve of a big outdoor hockey game at New York's Yankee Stadium, we find out how the NHL is converting a baseball field to a hockey arena.