Rousek was moved to waivers Sunday, Elliotte Friedman of Sportsnet reports.
Rousek was reassigned to AHL Rochester on Tuesday.
Rousek (face) will be in the lineup Tuesday against Washington, per Bill Hoppe of the Olean Times Herald.
Rousek (face) won't play Saturday versus the Maple Leafs, Heather Engel of NHL.com reports.
Rousek (face) will not suit up Friday against New Jersey, Lance Lysowski of The Buffalo News reports.
Rousek (face) is expected to need a couple of days to recover after being injured in Tuesday's practice, coach Don Granato told Paul Hamilton of WGR Sports Radio 550. The 24-year-old forward will consequently be unavailable Wednesday versus Ottawa.
Rousek (face) is being evaluated after leaving Tuesday's practice, Bill Hoppe of the Olean Times Herald reports.
Rousek was recalled from AHL Rochester and will rejoin the Sabres' lineup Saturday versus the Oilers.
Rousek was assigned to AHL Rochester on Friday, per Lance Lysowski of The Buffalo News.
Rousek was called up by Buffalo on Wednesday.