Sim signed a two-year contract extension with the Toronto Maple Leafs in April 2026. His deal carries an average annual value (AAV) of $995K and runs through the 2027-28 season. Sim split time between the AHL and ECHL during his first professional season. The 21-year-old forward scored three goals in 13 AHL games, while scored two goals and totaling six points in 18 games. The combined performance was enough to give Sim another contract to prove his value to the Toronto organization. There isn’t much fantasy value here unless his development takes a massive step forward this summer.

In 2024, Sim had his contract rights with the Blues expire before returning for his final OHL eligibility year. Sim had the best season of his career with the London Knights, scoring 30 goals and 53 points in 54 games. His play earned him an AHL contract with the Toronto Marlies, where he will play next year. Turning 21 later this month, Sim still has plenty of runway to prove he can be an NHL player. He skates well enough to become an NHLer and has an identity as a pest who gets into lots of fights and gets suspended. While the Blues did not give him a contract, it would not be shocking to see him earn one next summer after an encouraging rookie year in the pros. If not, Sim will likely make a career in the minors as a brawler.

The St.Louis Blues drafted Sim in the sixth round (184th overall) in the 2022 NHL Entry Draft.