Countdown Friday: The Top 10 Bone-Crushing Hits

Every sport has its own distinct version of the collision. In football, it's a powerful tackle by a defender or an incredible truck by the ball carrier. In hockey, it's an open ice hit when a guy has his head down; basketball, it's a defender sliding in to take the charge; soccer, a slide tackle or a 50-50 challenge; baseball, an exciting play at the plate.

So today, we celebrate the big hit. Because there's nothing like a little adrenaline rush to kick off the weekend. Cue Chris Berman: "He just got JACKED UP!"

Let's begin.

Honorable Mentions:

Ed Reed wrecks Knowshon Moreno

Bobby Boucher does what Bobby Boucher does best

Phil Babbs gets nutted by the post

Norifumi Yamamoto gets a KO in 1 second

KG sets a brick wall screen on Zaza Pachulia

Dion Phaneuf upends Denis Hamel

Continue on for the Top 10...

10. Darcy Tucker drills Sami Kapenen into the boards

9. Zenedine Zidane delivers the infamous headbutt

8. Chris Young lowers the shoulder in Slamball

7. Ray Lewis levels Chad Ochocinco

6. Mark Texiera steamrolls Bobby Wilson

5. Kermit Washington hits Rudy Tomjanavich with "The Punch"

4. Wayne Rooney nut-stomps Ricardo Carvalho

3. Six-second MMA fight starts and ends in unbelievable fashion

2. Sheldon Brown jacks up Reggie Bush

1. Brian Campbell absolutely destroys R.J. Umberger