During the 2012-13 NFL season, Broncos linebacker Von Miller recorded 18.5 sacks and established himself as one of the best linebackers in the league. But he might have a little bit of trouble duplicating his success during the upcoming season.

According to ESPN, the 24-year-old has been suspended for the first four games of the 2013-14 NFL season for "violating NFL policy." Because the NFL has a confidentiality clause in place that prevents the league from discussing such violations, they haven't been able to specify exactly what kind of policy Miller reportedly violated. But he's currently appealing the league's ruling and could be eligible to skip the suspension if the appeal works out in his favor.

For the time being, though, Denver fans have cause for concern. They're one of the favorites to win the Super Bowl this season. But playing four games without a guy like Miller will not help their cause. Stay tuned to see whether or not Miller is forced to sit out the first four Broncos games of the season this fall.

UPDATE 1:

According to Brandon Krisztal—a reporter/host on 104.3 The Fan in Denver—Miller reportedly tested positive for marijuana and "Molly." 

Miller is expected to release a statement soon.

UPDATE 2:

Here is Miller's response to the news about the possible four-game suspension:

Hmmm...

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[via ESPN]