The Red Sox reassigned Olivarez (shoulder) to minor-league camp Wednesday, Mac Cerullo of the Boston Herald reports.

Olivarez (shoulder) signed a minor-league contract Thursday with the Red Sox, Chris Cotillo of The Springfield Republican reports.

Olivarez (shoulder) was outrighted to Triple-A Albuquerque on Wednesday.

Olivarez (shoulder) began a rehab assignment with the Rockies' rookie-level Arizona Complex League affiliate July 15 and struck out one over two perfect innings in his lone appearance for the club.

Olivarez (shoulder) is getting stronger in his throwing program and has begun to throw off a slope, Thomas Harding of MLB.com reports.

Olivarez (shoulder) was transferred to the 60-day injured list Saturday, Danielle Allentuck of The Denver Gazette reports.

Olivarez has a scapula strain in the back of his left shoulder, Jonathan Mayo of MLB.com reports.

The Rockies optioned Olivarez to Triple-A Albuquerque on Thursday.