This whole paragraph is a big bunch of hooey.
DB's don't take on bigger players in order to avoid injury?
They're all coached to always go at guys' knees?
What a load of made-up malarkey you're spouting.
Keller was virtually at a stand still with his back to the approaching safety, who had all the momentum.
The safety was in complete command of the situation with a variety of options available to him and plenty of time and space to decide how to take down a stationary, defenseless target.
He made a gutless decision to deliberately attack the guys knees from the backside which is something you just don't do on a ballfield. Just because it was a big FU to the rules committee for telling him he's not allowed to dish out kill shots anymore doesn't suddenly make it acceptable.
It was a dirty, gutless play that cost him the respect of his opponents and his teammates and I hope somebody makes him pay for it sooner rather than later.