She's recovering forem knee surgery and hasn't play a competition match in seven months. OF COURSE she's out of shape! And given the running, cutting, hard-hitting game Serena plays, returning when she's less than 100% gives her a big chance of injuring something else. Look what happened to Venus.
I just HAD knee surgery (February 5th), after resting the knee for a couple months to heal ligament damage.. I've started rehabbing and it's really damn annoying all the things I can't do, or can't do painlessly. But the doctor warned me it's long road back to 'painless'. For months going forward, I'm at risk of the knee swelling up, or being excessively sore. That's not new damage. It's just part of the normal recovery progress. I'm not going to be doing ten mile runs for a looooong time.
Proud to be an American
Not blind. Not uninformed. We are party to atrocities. But the response of the world after 9/11 is worth noting. Even our most dire enemies offered aid. We should all be so lucky.