Tolle took a no-decision against the Mariners on Monday, allowing four runs on six hits and two walks in 5.2 innings. He struck out six.
The Cardinals optioned Crooks to Triple-A Memphis on Monday.
Monasterio is out of the lineup for Monday's game against the Mariners.
Crochet (lat/shoulder) was spotted playing catch off the mound Monday, Mac Cerullo of the Boston Herald reports.
The Red Sox recalled Gasper from Triple-A Worcester on Monday, and he'll start at first base and bat second in the team's series opener versus the Mariners.
Rutschman is out of the lineup for Monday's game against the Mariners.
The Red Sox placed Contreras on the 10-day injured list Monday due to a left hamstring strain.
Mead (wrist) played catch on the field at Fenway Park on Monday, Mac Cerullo of the Boston Herald reports.
Winn (thumb) could be activated from the 10-day injured list when first eligible Tuesday, Derrick Goold of the St. Louis Post-Dispatch reports.
Wetherholt will have his injured right wrist examined by a specialist in Arizona early this week, Derrick Goold of the St. Louis Post-Dispatch reports.
