The Tennessee Titans made it official Tuesday with the signings of running backs Adrian Peterson and D’Onta Foreman to their practice squad. The moves come in the aftermath of Derrick Henry’s broken foot. The league’s leading rusher is scheduled to have surgery Tuesday and is expected to miss 8 to 12 weeks. Also Tuesday, the Titans released linebacker Avery Williamson from the active roster. Peterson agreed to terms Monday. He is expected to be elevated ahead of Sunday night’s game between the Titans (6–2) and the host Los Angeles Rams (7–1). How much the seven-time Pro Bowler and former league MVP will play is up in the air. “I can’t answer those questions until we practice,” Titans running backs coach Tony Dews said Tuesday. “If it’s carry 10-15 times or one time, I don’t know until we see what we got. My job is to teach him what we do, …