Auston Matthews practiced with the Maple Leafs on Friday for the first time since colliding James Paxton Jersey with teammate Morgan Rielly in a Dec. 9 game against the Penguins, and then afterward shed some light on what kept him out the past two weeks.Matthews admitted to reporters he felt "normal concu sion symptoms" after the collision, adding he did not feel any symptoms until Greg Bird Jersey after the game and the next day. He confirmed that he underwent the league's concu sion protocol, but did not provide further informationThe Leafs referred to Matthews' ailment as an upper body injury ever since it occurred.Matthews shaken up after colliding with Rielly Flintor (@TheFlintor) After skating the better part of the week on his own, Matthews rejoined his teammates for a full team practice on Friday, skating on a line with Zach Hyman and William Nylander. Matthews is a game-time Wade Boggs Jersey decision for Saturday's road contest in New York against the Rangers, the final game before the league's holiday break in the schedule."I'm feeling a lot better, feel good out there on the ice," offered Matthews. "Just trying to get my legs back."MORE: Magic Mitch, road doldrums and five takeaways from Leafs' weekThe Maple Leafs won just two of six games since Matthews suffered the injury. He also mi sed five games last month with an upper-body injury."It's very frustrating, you never like mi sing any Mariano Rivera Jersey games," offered Matthews. "It (stinks), but the main thing is to be healthy, that's my main concern."Leafs coach Mike Babcock seemed irritated that Matthews shared all that he Bernie Williams Jersey did with reporters after practice."I heard you guys already talked to Auston, so we're done with that," said Babcock. "What else?"Dave McCarthy contributed to this story from Toronto