Today's conditioning exercise is Ball Slams! Similar to the burpee, the ball slam is also a very good full-body conditioning exercise. The extension of the body to pick the ball up and lift it overhead and the flexion element of the body bending over to slam it down on the ground as hard as possible makes it a good balance for training. Done properly, it uses the major muscles groups in just this single movement.
Picture from DenverPost.com
Add it to the end of your workout and do a set of high reps and you will be huffing and puffing after. Afterall, it is also a good stress-relief exercise if you picture slamming it on someone's face on the ground.