Doesn't Kobe play with broken fingers all the time?
I have to echo the sentiment that Rondo being out has to have something to do with more than just his pinky, whether it's the plantar fascitis acting up, or just his head not being in the right place. The pinky is just an excuse (perhaps for the coaching staff, not Rondo himself).
I hope it's just that Rondo needs rest... we need Rondo.
About the Co-b broken fingers... are you sure you are not mistaking him for Chuck Norris or something? He hasn't played with a broken thumb, and those "broken fingers" are more like arthritic fingers with an occasional broken finger.
He played with a broken index finger last year...and it was his shooting hand as well.
Yes, he was playing with a broken finger last year, but that's not like saying he plays "with broken fingers all the time". Playing through injuries is something to acknowledge, although is not that uncommon. Several Celtics played through injuries and pain since the Orlando series last year.
Not his thumb, but I'm pretty sure Kobe plays with sprained or broken index / middle / ring fingers. I remember hearing that his fingers at times look painful, even crooked because of how much he gets hacked etc. Yet he puts on tons of tape and gets shots and plays through it. Say what you want about Kobe, but he's an iron man.
Ok, I won't argue about Co-b's toughness, or if he's clutch, or about his well-deserved Bill Russell trophy last june. But I wouldn't mistake Co-b for this guy:

And about Rondo, I hope he's back against San Antonio. The Celtics need him.