The move was an emotional one for the two-time All-Star, as Toronto was the only team he had ever played for since being selected by the Maple Leafs with the No. 4 pick in the 2015 NHL draft. On Tuesday, Marner penned an emotional farewell letter to Toronto fans in which he said not bringing them a Stanley Cup was hard on him.

After nine seasons in Toronto, Mitch Marner leaves Toronto as the fifth-highest scoring Maple Leaf in team history.

Ahead of free agency, the Toronto Maple Leafs locked up one of their key young players, signing forward Matthew Knies to a six-year extension worth $46.5 million.