The perplexing case of why Minnesota Vikings linebacker Chad Greenway attended minicamp for the Minnesota Vikings more than a week ago but didn’t participate just won’t go away.

Greenway, who led the Vikings in tackles last season, was present for the three-day camp and would participate in stretching exercises before retreating inside to the team’s facility and not practicing. He wasn’t available to discuss his inactivity at minicamp and then told KFAN in Minneapolis last week that nothing was going on and that he had some type of super secret agreement with coach Brad Childress.

The situation screamed one of two things: Contract or injury.

Greenway denied both as the cause of his absence from the practice field on the radio and then was asked about it this weekend in South Dakota when he attended Legends Sports Clinics.

“There’s nothing (contract) related at all," Greenway told the Sioux Falls Argus Leader. "There is no contract issue at all. Coach (Brad) Childress gave me some time off for the minicamp, and that’s really all that matters.”

That’s the second time Greenway, who is entering the final season of a five-year contract he signed as a rookie, has denied that the almighty dollar is in play. He will earn roughly $3 million this season.

“I signed a five-year contract, and I’m going to play it out to the best of my ability,” he said. “The Vikings have been very good to me.”

Greenway told KFAN that he would be 100 percent ready to go for training camp. Our guess – and it’s only a guess – is that he suffered a minor injury, maybe in OTA’s, and doesn’t want to disclose it. But by approaching it the way he has, Greenway certainly has left the door (wide) open to speculation because coaches don’t just give players the weekend off when it comses minicamps.

Follow me on Twitter: BradBiggs