National Hockey League players have been making--and breaking--records since the league was formed more than a century ago. With so many talented players competing for the Stanley Cup each year, some records have been easier to break than others. Some of the most impressive records have remained in place for years or decades, with up-and-coming athletes unable to eclipse them. Many sports fans and experts alike see these records as nearly impossible to beat. Part of the Unbreakable Sports Records series, Hockey Records That Will Be Tough to Beat tells the stories of five hockey record holders whose personal bests might just stand the test of time.