Jenks in hospital; Williams optioned

MINNEAPOLIS -- Bobby Jenks has been hospitalized for three days and was undergoing a colonoscopy Monday, manager Terry Francona said, citing his favorite all-encompassing explanation, "intestinal turmoil," as the reason.

"He got sick, I mean real sick,'' said Francona, who offered no further details.

Jenks was to have gone to Fort Myers to continue his rehab from back problems, but that has been placed on hold.

-- Left-handed reliever Randy Williams was optioned to Pawtucket to make room for Jed Lowrie, who was activated from the disabled list. Lowrie, 7-for-17 on his rehab stint with Pawtucket, was playing third base (and batting seventh) in place of Kevin Youkilis.

-- Outfielder Ryan Kalish, after a brief rehab stint with Lowell, is back with Pawtucket after a long absence because of shoulder and neck injuries.