Pittsburgh Steelers head coach Mike Tomlin shared a number of roster updates with reporters on Saturday as training camp rolls along. Altogether, the Steelers are generally quite healthy. On top of a positive bit of news around quarterback Russell Wilson, Tomlin shared that tight end Rodney Williams is dealing with what appears to be an injury to his AC joint in his shoulder. Outside of that, there aren’t any notable injuries, Tomlin said. “Rodney Williams fell on his shoulder, looks like an AC joint,” Tomlin said. “Usually those characterize as a number of days but we’ll get that definitive h…