What's eating Gilbert's knee?

Doesn't it feel like Gilbert Arenas's knee is going the way of Grant Hill's ankle? Gilbert had his third operation in 17 months on his left knee today, where doctors cleaned out "floating debris."

Arenas originally tore the lateral meniscus in his knee in April 2007 and it's been a rough ride ever since. He rehabbed too quickly the first time, forcing him to miss most of last season. And now he's expected to miss at least the first month of the impending season as he tries to fully rehab his main "pushoff" knee. Arenas is right-handed and he prefers to drive to his right with his dominant hand dribbling the ball. To do that, he has to gain leverage by being able to push off his left foot to get his first step. Obviously, a healthy left knee allows him to display his quickness, enabling him to beat his defender off the dribble.

Gil is known as a guy cut from a different cloth, so who knows what sorts of things he's done on his own time to speed the recovery of his knee. The guy is an insanely hard worker and he, more than anyone, is likely to be motivated by the people who doubt he can regain the athleticism and quickness he had pre-injury. He may actually thrive on it as he's made it his goal to prove the doubters wrong for his entire collegiate and professional careers. I just hope this isn't the case of an athlete fighting an eternal uphill battle, the way Grant Hill did when he lost the prime years of his career to a balky left ankle.