Pittsburgh Penguins ice and in attendance following the Jaromir Jagr trade. Today, the Penguins are one of the NHL's most popular teams, especially among American non-Original Six franchises and are considered second behind the Steelers among Pittsburgh's three major professional sports teams, taking advantage of both its success and the Pittsburgh Pirates struggles both on and off the field. Especially notable was a 2007 survey done of the four major sports leagues 122 teams, in which the Penguins surprised observers by being ranked 20th overall and third among NHL teams, while the Steelers were ranked number one and the Pirates (before the
Ice hockey in the United States restricted to protect junior players' college eligibility). The Frozen Four is college hockey's national championship. Summer senior ice hockey is increasing in popularity in the 21st century, with Edina, Minnesota's Da Beauty League and Buffalo, New York's Fattey Hockey League both drawing NHL players who use the leagues to stay in shape during the offseason. Da Beauty League, established in 2016, is considered the nation's premier summer ice hockey league and benefits from corporate sponsorship from the Minnesota business community. A hockey tournament debuted in the summer Olympics in 1920. It would later be called the first World Ice Hockey