Jamaal Charles ready for start of camp

Chiefs RB Jamaal Charles (knee) is on the field for the start of training camp.  He was held out of spring practices as a precaution, but his rehab went smoothly all offseason.  He's now almost 11 months removed from that torn ACL.  Barring a setback, he'll be good to go for Week 1.  The question now becomes how long it takes J-Chaz to regain that trademark explosion.  We'll be watching him closely in preseason action.