The Astros released Rosscup from his minor-league contract Sunday.
Manager Dusty Baker said Sunday that Rosscup won't be included in the Astros' Opening Day bullpen, Brian McTaggart of MLB.com reports.
Rosscup signed with the Astros as a non-roster invitee Tuesday, Brian McTaggart of MLB.com reports.
The Rockies returned Rosscup to Triple-A Albuquerque on Thursday.
Rosscup's contract was selected by the Rockies on Friday.
Rosscup will sign with the Rockies and join the 60-man player pool, pending a physical and COVID-19 screening, Mark Berman of Fox 26 reports.
Rosscup was released by the Rockies on Wednesday, Baseball America reports.
Rosscup joined the Rockies on a minor-league deal Friday, Thomas Harding of MLB.com reports.
Rosscup was traded from the Dodgers to the Cardinals on Monday in exchange for cash considerations.
Rosscup was outrighted to Triple-A Oklahoma City on Saturday, Ken Gurnick of MLB.com reports.