The Toronto Maple Leafs are entering the 2026-27 season with the NHL's most hyped rookie: Gavin McKenna. McKenna, of course, was selected by the Maple Leafs with this year's first-overall pick. While McKenna is the Maple Leafs' top breakout candidate for next season, they have some other players who could very well hit new levels for them in 2026-27. Due to this, let's take a look at three under-the-radar Maple Leafs breakout candidates for next seasonEaston CowanIn what was a nightmare 2025-26 season for the Maple Leafs, Easton Cowan was one of their bright spots. Bo GroulxBo Groulx is an intriguing breakout candidate to watch next season on the Maple Leafs.