Marner was set to hit unrestricted free agency for the first time in his career after his contract with the Maple Leafs expired on June 30. Rather than hit the open market, he was dealt to Vegas in exchange for Nic Roy and proceeded to sign an eight-year contract worth $12 million per season.

Marner signed an eight-year contract extension worth an average annual value of $12 million

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