Vikings running back Adrian Peterson, who suffered a serious high ankle sprain during the Vikings' 27-21 loss to the Raiders, said Wednesday he expects to play against the Falcons on Sunday.
Peterson, who was in a walking boot but not limping Wednesday, expects to practice by Friday and be ready to go Sunday.
The final decision on whether Peterson will play will be made by coach Leslie Frazier, who didn't dispute what Peterson said.
X-rays taken after the game and an MRI on Monday were encouraging, which means Peterson won't be out too long. He said he actually wanted to go back in the game on Sunday.
"I just got my ankle caught up on a defender and it got twisted up pretty bad," Peterson said. "[It's] just my mentality. I'm always going to come out and see what I can do. I guess it was just me trying to convince myself that I could go back out, but ultimately I couldn't."
The Vikings' 6-10 record last season and 2-8 start this year hasn't prevented Peterson from playing some of the best football in his five-year career.
This year Peterson has posted a 87.2 yards-per-game rushing average. It stood at 94 yards before he was injured Sunday, but despite being limited to six carries against the Raiders, Peterson's average is still his highest since he averaged 110 yards per game in 2008, his second season in the league, and the third- highest total of his career.
If he can remain productive in spite of his ankle injury, Peterson is on pace for his second-highest total of rushing touchdowns. He has 11 this season through 10 games, setting him on pace for around 16 touchdowns. His career high for touchdowns was 18 in 2009 and his second- highest total is 12 in 2007 and 2010. Peterson's 11 rushing touchdowns lead the NFL, one more than LeSean McCoy of the Philadelphia Eagles and two more than Panthers quarterback Cam Newton.