Aulie, who would have been an restricted free agent Sunday, had no goals and three points in 36 NHL games this past season split between the Toronto Maple Leafs and the Lightning. Tampa Bay acquired the 23-year-old defenseman from Toronto for forward Carter Ashton in February.
A fourth-round pick by Calgary in 2007, Aulie was part of the deal that sent Dion Phanuef from the Flames to Toronto.
He's only 17 but he can see the ice so well and he moves the puck and goes to the open ice all the time, so I just think he's a player that is ready to play in the NHL. I'm really looking forward to coaching someone like this.
— U.S. National Junior Team coach Ron Wilson on Auston Matthews, the projected No. 1 pick of the 2016 NHL Draft