Ultra fast punching!!! (Do you think this is real)?

[rjj tszyu]

Check out RJJ training on the double end bag...
Now this shit is sick.

Check out the 6:10 mark he throws something like 25 punches in 4/5 sec.
Anyone who's hit the double end bag can tell you how fucken hard it is to do that...

http://www.youtube.com/watch?v=JbRykf-5Zo8

Everything about him is amazing. Even his jump rope skills are great.