Falcons receiver Julio Jones had 10 catches for 189 yards and a touchdown despite being covered by Peterson. As a team, the Falcons piled up 361 yards in the air en route to a 29-18 upset of the Cardinals, who are in first-place in the NFC West.
"I feel that I lost this game for my team because I feel I didn't play a good ball game today," Peterson said. "I believe if he didn't have those yards that he did have, the score [would] be a little bit different.
"The guys tell me it's a team loss but I still put this loss on my shoulders. That's just the way I am."
Peterson, 24, is a two-time All-Pro First-Team selection and has two interceptions and 36 combined tackles this season.
Arizona's defense has been stout throughout the season, ranking No. 4 in points and No. 13 in yards allowed. The passing defense is No. 2 in interceptions and No. 7 in touchdowns allowed.
While Jones got the best of him on Sunday, Peterson said his confidence remains high.
"He won the matchup today," Peterson said. "Cy Young winners give up home runs. At the end of the day, you have to bounce back. Like [linebacker Larry Foote] said here earlier, we have to face adversity. At the end of the day, she's here. It's all about what type of men we got in this locker room. How [are] we going to bounce back from it?"
- Paul Palladino