DENVER -- After prescribed rest and relaxation, Jason Giambi was back at Coors Field on Wednesday and ready to resume baseball activities.
The 41-year-old was placed on the 15-day disabled list July 21 with a viral syndrome.
"I had stomach aches, was kind of nauseated," Giambi said. "I was tired all the time, exhausted."
Giambi played through the malaise for about three weeks before he asked team doctors to check him out, figuring it was a combination of his age, the birth of he and his wife Kristian's first daughter, London, in November, and the 100-degree temperatures the Rockies were playing in.
"I started to notice my batting practices weren't very good, I wasn't able to go out to first base because I was so tired," Giambi said. "That's when I spoke up. We ran some tests and we went from there."
Giambi hit .100 in July (1-for-10), when he estimates he began feeling bad. The slugger took "a ton of antibiotics" and is hoping he's well enough to get back on the field soon.
"The big test will be how the stuff I do today goes," Giambi said. "I feel a lot better now. But first I've got to start. Like I said, I haven't really done much."