SANTA CLARA -- Here’s a look at the 49ers’ position groups ranked by overall strength. The team’s regular season beings Monday at 7:20 p.m. against the Los Angeles Rams.
Defensive line
Starters: Arik Armstead, Mike Purcell, Quinton Dial
Backups: DeForest Buckner, Glenn Dorsey, Ronald Blair, Tony Jerod-Eddie, Taylor Hart
Synopsis: Chip Kelly and defensive line coach Jerry Azzinaro will go back to their routine at Oregon, which was to rotate heavily on the defensive line to the point at which even backups can get 25-30 snaps. Two rookies could see significant action, Buckner and fifth-rounder Blair.