Kansas defensive end Toben Opurum (35) flexes his muscles next to linebacker Ben Heeney after sacking Rice quarterback Taylor McHargue and recovering a fumble on the play during the first quarter on Saturday, Sept. 8, 2012 at Memorial Stadium.

Kansas City, Mo. ? The Kansas City Chiefs have signed former Kansas defensive end Toben Opurum as an undrafted free agent after trying him out as a fullback during rookie minicamp.

The Chiefs announced the move in a statement Friday.

The 6-foot-1, 250-pound Opurum began his career with the Jayhawks as a running back, gaining 554 yards and scoring nine touchdowns during the 2009 season. He moved to linebacker as a sophomore and played defensive end the past two seasons, making 109 tackles and 6½ sacks in his career.

Kansas City has turned over the fullback position this offseason, trading cornerback Javier Arenas to the Arizona Cardinals for Anthony Sherman and drafting Braden Wilson out of Kansas State.