Leafs enter training camp with familiar optimism and questions about replacing Mitch Marner’s production. Easton Cowan pushes for a roster spot as Toronto leans into depth pieces like Nicolas Roy, Dakota Joshua, Henry Thrun, Travis Boyd, Michael Pezzetta and Matias Maccelli to supplement the top line. Marner’s recent trade to Vegas reshapes the ceiling, but Darryl Sittler’s visit underscores a franchise chasing Cup glory without drastic off-season splash.