BALTIMORE ORIOLES — Assigned RHP Dean Kremer to Norfolk (IL) for rehab.
BOSTON RED SOX — Selected the contract of RHP Brett Kennedy from Long Island (Atlantic League).
CHICAGO WHITE SOX — Placed OF Luis Robert on the COVID-19 IL. Recalled INF Jake Burger from Charlotte (IL).
HOUSTON ASTROS — Reinstated RHP Bryan Abreu.
NEW YORK YANKEES — Placed LHP Aroldis Chapman on the 15-day IL. Reinstated C Kyle Higashioka from the COVID-19 IL.
SEATTLE MARINERS — Assigned RHP Adrian Sampson outright to Tacoma (PCL) after he cleared waiver. Released OF Steven Souza Jr.
TEXAS RANGERS — Reinstated RHP Albert Abreu from the 15-day IL. Optioned RHP Nick Snyder to Round Rock (PCL).
PHILADELPHIA PHILLIES — Assigned CF Mickey Moniak to Reading (EL) for rehab. Agreed to terms with RHP Zach Eflin on a 2022 contract with a 2023 mutual option.
PITTSBURGH PIRATES — Recalled RHP Roansy Contreras from Indianapolis (IL). Selected the contract of OF Cal Mitchell from Indianapolis. Placed RHP Heath Hembree on the 15-day IL, retroactive to May 21 and DH Daniel Vogelbach on the 10-day IL. Designated LHP Cam Alldred for assignment.
LONG ISLAND DUCKS — Signed and activated RHP Steven Colon. Traded RHP Frank Moscatiello to Quebec (Frontier League) completing a previous deal between the two teams.
EMPIRE STATE GREYS — Signed INF Jose Mercado and 1B Trey Woosley. Released OF Hanley Acevado, LHP Gerald De La Cruz, and 3B Kenny Hernandez.
EVANSVILLE OTTERS — Signed OF Trevor McKinley and INF Julius Puryear.
FLORENCE Y’ALLS — Signed INF Skylar Mercado and RHP Matt Reitz. Released RHP Thomas Siemer.