Brewers manager Pat Murphy said Williams was unavailable to pitch Sunday against the Athletics due to left shoulder soreness, Bally Sports Wisconsin reports.
Murphy said that Williams felt a "pinch" in his non-throwing shoulder when he woke up Sunday morning, likely a result of sleeping on it wrong. Williams attempted to play catch prior to Sunday's game, but he was sore and "just didn't look right," per Murphy, who declared his closer off limits for the day. It sounds like a day-to-day type injury, but it's not yet clear whether Williams will be available for Tuesday's series opener versus the Giants. Trevor Megill would likely fill in as closer if Williams is not ready.