Clay Buchholz was scheduled to pitch yesterday at Fenway Park.

Instead, he woke up in the hospital.

Because Buchholz had been ill for several days, the Red Sox decided Saturday to scratch him from his start. But after he was admitted to Massachusetts General Hospital and held overnight for observation, they put him on the 15-day disabled list.

A source said the Red Sox aren't sure what caused the illness, but added that Buchholz' "stomach was all mixed up." A Channel 7 report indicated that Buchholz is dealing with intestinal bleeding, possibly caused by taking too much anti-inflammatory medication, like ibuprofen.