Williams will be skipped this weekend in Cincinnati, Rob Biertempfel of the Pittsburgh Tribune-Review reports.
The Pirates will use Thursday's off day to skip Williams; Chad Kuhl, Ivan Nova and Gerrit Cole will start against the Reds (in that order). Williams gave up four runs on four hits and four walks over 4.2 innings in his last start and has dropped four of his last five decisions. It's uncertain when he may return to the rotation.