AP, before Sunday’s loss. (Genevieve Ross / AP)

“We have to take [losing] personal,” Peterson said on “Mike and Mike in the Morning” on ESPN Radio. “I’m tired of losing, especially going to halftime with these leads. I’m sure my comrades, they feel the same way.”

The Vikings have outscored opponents 54-7 in the first half, then they’re been outscored 67-6 in the second. In Minnesota’s loss to Detroit, he had 12 carries for 73 yards; he’s had only 100+ yard game this year.

“I really can’t explain it,” he said.

Peterson’s father was more outspoken, saying Adrian is “the league’s highest-paid decoy.”

“I see the agony on his face,” Nelson Peterson told the St. Paul Pioneer Press after Sunday’s loss. “He was frustrated that they weren’t going to him. He wanted to help them win the game. Five carries in the second half? That’s 2 1/2 carries per quarter. He thought that, with a 20-0 lead, he was ready to lead them to a victory. He’s being a good sport about it, but he’s upset.”

Peterson and the Vikings have a chance to change this weekend. They play the 0-3 Kansas City Chiefs.

“I have to remind myself of this: Even if Adrian gets stopped for negative gain or two yards because they’ve got so many people at the line of scrimmage, he’s such a great player that even against eight-man fronts he can still make something happen,” Coach Leslie Frazier said. “You can’t ever forget that.”