The Jacksonville Jaguars lost two defensive players for the season on the same day as they put defensive tackle Sen'Derrick Marks and rookie safety James Sample on injured reserve.

Jaguars place DT Marks, S Sample on IR, activate WR Greene from short-term IR & promote S Loston from practice squad — Mark Long (@APMarkLong) November 18, 2015

The news comes just one day after head coach Gus Bradley told the media that the team's intention was to put Marks on injured reserve.

The safety position for the Jaguars has been the most volatile of the defense, with several combinations of players put at the back of the secondary over the course of the first nine games.

Sample ends his season after a forearm injury he suffered this summer and several other lingering problems. He finishes 2015 with just four games played, 15 total tackles, and one pass defended. His last action was in Week 4 against the New England Patriots.

The Jaguars have signed former practice squad safety Craig Loston to fill Sample's spot.