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If looks could speak … who knows what might have come out of Adrian Peterson's mouth.

The Saints running back appeared to stalk coach Sean Payton on the sideline with a glare that could frighten anyone. It's hard to say what crossed Payton's mind when he looked into those eyes, but ESPN's cameras caught it — and so did Twitter — during the Monday Night Football tilt against the Vikings at U.S. Bank Stadium.

Peterson and Payton denied that anything was amiss when talking to reporters, with Peterson telling our Chip Scoggins:

"That's what people do, they jump to conclusions," Peterson said. "People make their own assumptions when they don't have any idea what's going on or what was said. I could have said, 'I love you.' There's no issue. We have bigger fish to fry."

This one was a walleye to envy, though.

Peterson took the first carry of the game nine yards, which was promising. But he finished with six carries for 18 yards. To be fair, the Saints' entire offense struggled and combined they rushed for just 60 yards.

But if Peterson was hoping to show out in front of fans of his former team, where he spent 10 years in the purple and gold, it wasn't to be. Or maybe he was just mad because the Saints were playing so poorly in the 29-19 loss.

Whatever the reason, he doesn't look like he was in the best of moods.