Jacksonville Jaguars defensive tackle Sen'Derrick Marks (99) runs out of the tunnel before the start of the first half of an NFL football game against the Indianapolis Colts in Jacksonville, Fla., Sunday, Sept. 21, 2014. The Colts beat the Jaguars 44-17.
Jacksonville Jaguars defensive tackle Sen'Derrick Marks (99) runs out of the tunnel before the start of the first half of an NFL football game against the Indianapolis Colts in Jacksonville, Fla., Sunday, Sept. 21, 2014. The Colts beat the Jaguars 44-17. Stephen B. Morton AP
Jacksonville Jaguars defensive tackle Sen'Derrick Marks (99) runs out of the tunnel before the start of the first half of an NFL football game against the Indianapolis Colts in Jacksonville, Fla., Sunday, Sept. 21, 2014. The Colts beat the Jaguars 44-17. Stephen B. Morton AP
49ers with Matt Barrows

49ers with Matt Barrows

The premier blog for news and insights on the San Francisco 49ers

49ers sign defensive lineman who’s familiar with SF defense

August 23, 2017 10:03 AM