BOSTON RED SOX — Designated RHP Brandon Brennan for assignment. Selected the contract of RHP Ryan Weber from Worcester (Triple-A East).
CLEVELAND INDIANS — Recalled 2B Ernie Clement from Columbus (Triple-A East). Optioned RHP Triston McKenzie to Columbus.
DETROIT TIGERS — Optioned RHP Beau Burrows to Toledo (Triple-A East). Selected the contract of RHP Buck Farmer from Toledo. Sent RHP Erasmo Ramirez to Lakeland (Low-A Southeast) on a rehab assignment. Sent C Grayson Greiner to Toledo on a rehab assignment.
LOS ANGELES ANGELS — Claimed INF Jack Mayfield off waivers from Seattle.
MIAMI MARLINS — Designated RHP Preston Guilmet for assignment. Reinstated LHP Trevor Rogers from the 10-day IL. Sent SS Miguel Rojas to Jacksonville (Triple-A East) on a rehab assignment. Acquired C/1B Lorenzo Quintana from Houston in exchange for cash considerations.
NEW YORK METS — Sent RHP Dellin Betances to St. Lucie (Triple-A East) on a rehab assignment. Sent 2B Jeff McNeil to Brooklyn (High-A East) on a rehab assignment.
SAN FRANCISCO GIANTS — Optioned LHP Caleb Baragar to Sacramento (Triple-A West).
WASHINGTON NATIONALS — Optioned RHP Andres Machado to Rochester (Triple-A East).
VANDERBILT — Announced the retirement of track and field/cross country head coach Steve Keith.