The Toronto Maple Leafs signed and traded star right winger Mitch Marner to the Vegas Golden Knights Monday, ending the 100-point player's stint with the team and leaving a massive hole at a key position on the offensive side of the puck.

The Core Four is no more in Toronto. Mitch Marner has been dealt to the Vegas Golden Knights in a sign-and-trade, and the Maple Leafs have no time to lose in the hunt for his replacement.

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.