"The Toronto Maple Leafs have quite the challenge ahead without their captain, John Tavares, for minimum two weeks. Today the Leafs' hit the ice for practice in anticipation of a big Saturday matchup at home against the Boston Bruins. Head coach Mike Babcock looks like he's decided what his new lines will look like for now. Alexander Kerfoot will center the second line in between Mitch Marner and Ilya Mikheyev while Jason Spezza will jump back into the lineup and center the team's third line in between Trevor Moore and Kasperi Kapanen. Check out the full lines below:Johnsson-Matthews-Nylander Mikheyev-Kerfoot-Marner Moore-Spezza-Kapanen Timashov-Shore-Gauthier Petan, Hyman Rielly-Ceci Muzzin-Barrie Marincin-Holl Gravel-Dermott Andersen Hutchinson "