Cowan was selected by the Maple Leafs in the first round of the 2023 NHL Entry Draft (28th overall) and had an incredibly impressive training camp but has been reassigned to the London Knights (OHL) for the 2023-24 season. The 18-year-old forward returns to junior hockey where he had 20 goals, 33 assists, 47 PIMs and a +10 plus/minus in 68 games in 2022-23.

Cowan was Toronto's 2023 1st round pick (28th overall) and has signed a three-year, entry-level contract on Thursday with the Maple Leafs. The 18-year-old centre is fresh off a 20 goal, 53 point, 47 PIM, and +10 plus/minus season across 68 games in 2022-23 with the London Knights (OHL). He is expected to spend the 2023-24 season back with London.