Williams will start at shortstop and bat seventh in Sunday's game against the Tigers.
Williams will cover shortstop for the series finale while Jacob Wilson is day-to-day with a patellar tendinitis. Though Williams had been included in the lineup in six of the Athletics' previous seven games, each of those starts came against left-handed pitching. The Athletics could still prioritize Tommy White, Donovan Walton and Jeff McNeil over Williams for reps in the infield versus righties.