GIANTS: Placed P Tyler Walker on 15-day DL with right shoulder inflammation. Purchased contract of P Brian Cooper from Triple-A Fresno.
METS: Placed C Mike Piazza on 15-day DL, retroactive to Wednesday, with hairline fracture of pisiform bone in left hand. Purchased contract of C Mike DiFelice from Triple-A Norfolk.
BENGALS: Waived DE Derrick Crawford, T Reese Hicks, WR Freddie Milons and FB Jeremy Thomas.
PATRIOTS: Waived P Rhett Kopp.