The Jaguars released C.J. Mosley earlier on Monday and have a lack of depth at the position. Marks, 26, was originally drafted in the second round by the Tennessee Titans in the 2009 NFL Draft. Prior to the 2012 season, Marks was a rotational player and spot starter in his career. Marks started nine games in 2011 and 14 games in 2012.
At 6'2 and just under 300 pounds Marks will likely play in the three-technique role on the defensive line.
It's also possible the Jaguars look for another defensive tackle in the NFL Draft, but for now they appear to have interest in Marks and have also been linked to Alan Branch, who played under Gus Bradley and Todd Wash with the Seattle Seahawks.