Free-agent RB A.J. Ouellette (Saints), LB D’Juan Hines (Browns), CB Hamp Cheevers (Titans) and CB Dee Delaney (Dolphins) are participating in the Kansas City Chiefs minicamp on a tryout basis. Undrafted free-agent FB Josh Caldwell (Northwest Missouri State) and OG Abdul Beecham (Kansas State) are also trying out for the Chiefs.