Wuertz, who has been out for the past month with right thumb soreness, struck out two in a perfect seventh inning for Triple-A Sacramento on Wednesday. The outing came just three days after the right-hander fanned three in a scoreless inning for Class A Stockton.
"Another pretty clean inning," manager Bob Melvin said. "Good chance we'll see him tomorrow."
Seemingly at full health, Wuertz will look to improve upon the 18.69 ERA he posted in six appearances following the break. He had compiled a 2.67 ERA before that time.