The Maple Leafs announced Wednesday that Marchenko (lower body) is considered week-to-week, Joshua Kloke of The Athletic reports.
Marchenko exited Monday's matchup against the Flames due to his lower-body injury, and he's facing a multi-game absence. It's not yet clear whether the Maple Leafs plan to place the 26-year-old on injured reserve while he recovers, but Benoit-Olivier Groulx is a candidate to see increased playing time while Marchenko is sidelined.