Buehler allowed one run on six hits and one walk while striking out three batters over four innings in a no-decision against Arizona on Thursday.
Sheets is in the lineup Thursday versus the Diamondbacks.
Campusano is not in the lineup Thursday versus the Diamondbacks.
Ray is listed as the Padres' probable pitcher for Friday's game against the Astros in Houston.
Stone (shoulder) will begin a rehab assignment at Triple-A Oklahoma City on Thursday.
Muncy went 1-for-4 with a three-run home run in a loss to the Cubs on Wednesday.
Betts went 4-for-5 with a run in a loss to the Cubs on Wednesday.
Miller (shoulder/back) allowed a solo home run and struck out three over two innings in his first rehab appearance with Triple-A Oklahoma City on Wednesday.
Tatis went 1-for-4 with a solo home run in Wednesday's 10-4 loss to the Diamondbacks.
Mize (4-7) allowed eight runs on nine hits and three walks while striking out one over 3.1 innings to take the loss versus the Diamondbacks on Wednesday.
