Malenstyn will not be in the lineup versus Toronto on Tuesday due to an undisclosed injury, Lance Lysowski of The Buffalo News reports.
Malenstyn is currently mired in a 38-game goal drought during which he has garnered a meager two assists, so few fantasy players figure to be impacted by his absence. With the winger shelved, the Sabres will need to bring a player up from the minors to face the Leafs -- with Isak Rosen a strong candidate to earn the promotion from AHL Rochester.