New England Patriots running back BenJarvus Green-Ellis and defensive tackle Vince Wilfork were among four players not present for Thursday's practice, though Wilfork's absence was not injury-related. Green-Ellis had been limited in Wednesday's session with a toe injury. Also not present for Thursday's session, which was held in full pads and in drizzly conditions, were linebacker Jerod Mayo (knee) and safety Josh Barrett (hamstring). It was Barrett's second straight missed practice after being inactive for Sunday's win over the New York Jets. With no defensive tackle on the practice squad, the Patriots were down to three defensive tackles in Thursday's practice: Kyle Love, Gerard Warren and Albert Haynesworth. Read more: http://espn.go.com/boston/nfl/story...-benjarvus-green-ellis-vince-wilfork-practice