Rookie DT Sebastian Valdez elevated by 49ers, set to make NFL debut vs. Rams

Undrafted rookie defensive tackle Sebastian Valdez is in line to make his NFL debut against the Los Angeles Rams on Sunday.The 49ers on Saturday elevated Valdez and veteran defensive lineman Clelin Ferrell from the practice squad to suit up for the key NFC West game at Levi’s Stadium.The 49ers (6-3) are a half-game behind the Rams and Seattle Seahawks, both 6-2, in the division.The 49ers also activated offensive lineman Ben Bartch from injured reserve and placed defensive lineman Mykel Williams on season-ending injured reserve.Williams sustained a torn ACL in his right knee late in the 49ers’ Week 9 victory over the New York Giants.The 49ers made the moves to bring up Valdez and Ferrell from the practice squad for the game, with three of their defensive linemen listed as questionable against the Rams due to injuries.Defensive linemen Alfred Collins (hip), Keion White (groin) and Kalia Davis (ankle) sustained injuries in practice this week to place their status for Sunday’s game in question.Valdez had an impressive training camp after signing with the 49ers as an undrafted rookie from Washington. He did not make the...