Joe Nathan threw 32 pitches on Sunday, closing out what became a 4-2 win over the Colorado Rockies.
Asked if he'd be available, Nathan said: "You better believe it."
The 32 pitches are the most Nathan has thrown in an appearance this season. Nathan has not pitched on consecutive days since May 28-29.
Here are a few other pregame notes:
* Matt Harrison said the back tightness that forced him out of Sunday's game isn't an issue today. Harrison believes he will be able to make his next scheduled start against Oakland on Friday.
* Derek Holland doesn't know when or where he'll begin his rehab assignment, but that's the next step as he recovers from left shoulder fatigue. Manager Ron Washington said Holland is expected to make three rehab starts with his first one being on a 45-50 pitch count.
* Neftali Feliz is still not ready to throw off a mound. He played catch again today.
* Right-hander Mark Hamburger, who was designated for assignment on Friday, has been claimed by the San Diego Padres, who optioned him to Triple A.
-- Drew Davison