Maurice Jones-Drew and NFL's Most Disruptive Contract Situations

As training camps get rolling across the National Football League, not all is well in the land of the pigskin, as several NFL clubs find themselves dealing with disgruntled stars looking for more zeroes on their paychecks.

Here's the latest on some of those impasses, from the NFL's leading rusher a season ago to a top-flight wideout and a rookie pass-catcher who is already giving his general manager a migraine.

Maurice Jones-Drew, RB, Jacksonville Jaguars

With 1,606 yards on the ground, Maurice Jones-Drew of the Jacksonville Jaguars led the NFL in rushing in 2011, and the seventh-year pro is of the opinion that that career year merits a raise in salary.

However, Jones-Drew still has two-years remaining on the $31 million deal he signed in 2009. The Jaguars expect the 27-year-old to honor the terms of that contract, with team owner Shad Khan explaining to The Florida Times-Union why the team has no intentions of redoing Jones-Drew's deal.

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"There's more than 50 players under contract. There are other people under contract in management, coaches. Does that mean if you do it for one, you do it for everybody? Where do you draw the line?"

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Both sides appear to be dug in for the long haul on this one, and until the fines that Jones-Drew starts racking up for being a no-show begin to seriously impact his wallet, that isn't likely to change.

Mike Wallace, WR, Pittsburgh Steelers

As expected, Pittsburgh Steelers wide receiver Mike Wallace was a no-show for training camp, as the fourth-year pro has, to this point, balked at signing his first-round restricted free-agent tender, which would pay him about $2.8 million in 2012.

Steelers management has indicated that it has no intention of so much as discussing a long-term extension with Wallace until he reports to camp and signs the tender.

However, that didn't stop the club from locking up another wideout long term, as the team agreed to terms over the weekend with Antonio Brown on a five-year, $42 million extension, according to the Associated Press via The Washington Post.

Some pundits have theorized that the Brown extension may signal that the Steelers could be looking to trade Wallace, but Pittsburgh general manager Kevin Colbert told ESPN's Ed Werder on Saturday that "Mike Wallace is not available for trade."

The Steelers have a long history of not kowtowing to player demands, and this situation all but certainly will be no exception.

Cliff Avril, DE, Detroit Lions

After posting a career-high 11 sacks and leading the NFC with six forced fumbles last year, fifth-year defensive end Cliff Avril was hopeful that his breakout season would lead to a lucrative long-term contract from the Detroit Lions.

However, the Lions placed the franchise tag on Avril, and with the two sides unable to reach an agreement on a deal by the July 16 deadline, Avril's choices boil down to playing in 2012 for $10.6 million or sitting out.

To this point, Avril has chosen the latter option, and in theory, he could do so for the first 10 weeks of the regular season and then report, playing for a pro-rated portion of that salary while still accruing a year of service time.

However, the odds of that happening are fairly remote. Given that Avril has little to no leverage in this situation, it would be a shock if he's not in the Lions' starting lineup when the team faces off against the St. Louis Rams at Ford Field on September 9.

Justin Blackmon, WR, Jacksonville Jaguars

The new collective bargaining agreement signed a year ago was supposed to make it easier to get first-round rookies into camp on time.

However, that doesn't mean that there aren't still a few newcomers dragging their feet, and unfortunately for the Jacksonville Jaguars, it means that they have not one but two contract headaches on their hands.

First-round pick Justin Blackmon has yet to sign a contract that is believed to be in the range of $18.5 million over four seasons, according to NFL.com, with all of that money being guaranteed.

That is, if the former Oklahoma State star can stay out of trouble following his second DUI arrest.

The Jaguars are reportedly seeking language in the contract that would protect the team should Blackmon run afoul of the law again, and while Blackmon and his agent have so far balked at the idea, it makes perfect sense for the team to want to cover their backsides.