NFL.com’s Mike Lombardi hears that Vikings’ running back Adrian Peterson will be the next player to complain about his contract.

The next player to complain about his contract will be Minnesota Vikings running back Adrian Peterson, who missed the mandatory minicamp due to a scheduling conflict.

That was the only details Lombardi provided on the topic, so we’ll have to wait and see if the story develops from here.

Peterson is in the midst of a six-year, $40.5 million deal that he signed after being drafted with the seventh overall pick in 2007. His contract has a lot of incentives and it doesn’t run out until 2013, so he wouldn’t have much leverage if he were to complain.

That said, he’s the Vikings’ offense (although it was clearly Brett Favre’s team in the second half last year) and if he did follow through with a long holdout, Minnesota might be forced to re-do his deal. Hopefully he’ll honor his current contract, but with no CBA deal in place, players are trying to get what they can now.