Detroit Lions running back Jerome Harrison is officially out for the season. The Lions placed him on the reserve/non-football illness list this morning, which is basically the injured reserve for non-football issues. Since Harrison's season is over because of a brain tumor, the Lions placed him on that list.

To fill Harrison's spot on the roster, the Lions signed running back Eldra Buckley. He worked out for the Lions yesterday (some people mistook him for Laurence Maroney) along with an unknown running back who didn't finish the workout. The Lions decided to add Buckley to the active roster after the workout.

Buckley entered the NFL in 2007 as an undrafted free agent from Chattanooga. He spent the first couple years of his career on the Chargers practice squad and joined the Eagles 53-man roster in 2009. He spent 2010 in Philadelphia as well and was let go during the final round of roster cuts this year.

Buckley will likely spend most of his time with the Lions on special teams. If another running back goes down, though, he would likely get a chance to get some carries.