| Date | Transaction | |||
| 5/30/03 | Freddy Sanchez: Recalled INF Freddy Sanchez from Pawtucket (AAA). | |||
| 5/26/03 | Matt White: Activated LHP Matt White from the 15-day DL. | |||
| 5/25/03 | Pedro Martinez: Placed RHP Pedro Martinez on the 15-day DL with a strained right latissimus dorsi, retroactive until May 16. | |||
| 5/20/03 | Optioned RHP Jason Shiell to Pawtucket (AAA); purchased the contract of RHP Rudy Seanez from Pawtucket. | |||
| 5/13/03 | Optioned RHP Steve Woodard to Pawtucket (AAA); activated RHP Robert Person from the 15-day DL. | |||
| 5/9/03 | Angel Santos: Outrighted INF Angel Santos from Pawtucket . | |||
| Kevin Tolar: Added LHP Bruce Chen to the 25-man roster; optioned LHP Kevin Tolar to Pawtucket (AAA). | ||||
| 5/7/03 | Signed RHP Rudy Seanez to a minor league contract. | |||
| Claimed LHP Bruce Chen off waivers from the Houston Astros. | ||||
