Vikings running back Adrian Peterson , listed as questionable (foot) on the NFL injury report for Sunday's game at Cincinnati, said he was "ready to roll" on Friday.

Peterson was inactive vs. the Eagles in Week 15, and was not happy about it, the Minneapolis Star-Tribune reported.

Peterson, whose 1,221 yards on the ground put him second in the NFL to Philadelphia's LeSean McCoy in rushing, said he expects to play after doing some work in practice and feeling improvement in his foot.