Even Serena Williams thinks her run to Aussie quarters is 'impressive' - USA TODAY

USA TODAY
Even Serena Williams thinks her run to Aussie quarters is 'impressive'
USA TODAY
MELBOURNE — There's an old adage that you're only as young as you feel. In Serena Williams' mind that computes to an age that doesn't even record in double digits. "Venus and I are mentally eight or nine, so that's why we're probably able to play a ...and more »