(Reuters) - Running back Adrian Peterson suffered a knee injury late in the third quarter of the Minnesota Vikings' 17-14 victory over the Green Bay Packers on Sunday.
Peterson was unable to put any weight on his leg as he hobbled off the field after Packers linebacker Kyle Fackrell rolled onto his right leg.
The seven-time Pro Bowl player, who had been nursing an ankle injury prior to the game, was unproductive before he limped off, finishing with 19 yards on 12 attempts.
In the season opener against the Tennessee Titans, he managed only 31 yards on 19 carries.