Robert Griffin III said Tuesday his surgically-repaired knee is "doing good" and reiterated that he will be ready to play in 2013. Considering it's been just three months since Griffin's surgery, it's silly to speculate on his Week 1 status. All we can glean from recent reports is that the initial phase of his rehabilitation has gone well and the Redskins are pleased with his progress. Still, it's worth noting that a similarly spectacular athlete in Derrick Rose has been sidelined for nearly 11 months with his ACL tear despite sustaining no setbacks.