Head coach Mike Tomlin said that Wilson (calf) is not scheduled to be a full participant in Wednesday's practice, and the Steelers are preparing for Justin Fields to make another start Sunday against the Chargers, Brooke Pryor of ESPN.com reports.

Despite being named the team's starting quarterback coming out of the preseason, Wilson has yet to make his Steelers debut and has been a limited participant in practice since informing the coaching staff Sept. 5 that he was dealing with calf tightness. According to Gerry Dulac of the Pittsburgh Post-Gazette, Tomlin suggested that the same plan from last week is in place for Wilson this week, which means he'll likely remain a limited or a non-participant in practices Wednesday through Friday before being inactive as the emergency No. 3 quarterback Sunday. Pryor notes that Tomlin said he was unwilling to commit to a permanent starting quarterback until Wilson is fully healthy, but so long as Fields keeps guiding the 2-0 Steelers to wins, he'll most likely rank as the preferred option. Fields has been an effective game manager through the first two weeks, presiding over a run-heavy offense while having yet to commit a turnover.