NFL roundup: Percy Harvin suffers setback, Brandon Browner out and more

The Seattle Seahawks may be without wide receiver Percy Harvin once again. Harvin returned to action in Week 11, playing in his first game of the season, but has reportedly experienced a setback with his hip injury. Harvin is dealing with pain in his surgically repaired hip and was listed as doubtful for Monday's game against the New Orleans Saints. Harvin had a big kick return and a 17-yard reception in his return in Week 11. Seattle had a bye week in Week 12.

Seattle Seahawks cornerback Brandon Browner has been declared out for Monday's game against the New Orleans Saints. Browner is facing a one-year suspension for violation of the league's substance abuse policy, but is appealing and therefore eligible to play in Week 13. Unfortunately, he's dealing with a groin injury and will miss the game, so the Seahawks will be as limited in the secondary.

Miami Dolphins' Jonathan Martin has been placed on the non-football injury list. That means Martin will miss the rest of the season, elevating the initial explanation that he was out for "personal reasons." Martin and teammate Richie Incognito are both at the core of a hazing investigation, of which Martin is the alleged victim.

The Pittsburgh Steelers placed center Fernando Velasco on injured reserve on Saturday. Velasco sustained an Achilles injury against the Baltimore Ravens on Thanksgiving and will be done for the season. Velasco was the backup center, starting in place of Maurkice Pouncey, who suffered a season-ending knee injury in Week 1.

Denver Broncos defensive end Derek Wolfe has been ruled out for Sunday's Week 13 matchup against the Kansas City Chiefs. Wolfe is dealing with an illness and did not travel with the team. He went to the hospital for testing, but it's currently unknown what the issue might be at this point. Wolfe has been very effective this season, starting the first 11 games for the Broncos.