Williams sisters do double-duty in Melbourne
MELBOURNE, Australia -- Serena Williams may have rolled her ankle, and whacked herself in the lip with her racket, but that doesn't mean she needs any extra rest.
A day after winning her third-round match against Ayumi Morita of Japan -- her first-injury free round at this year's Australian Open -- the No. 3-ranked Williams was back on the court Sunday to play alongside sister Venus.
The Williams sisters take doubles seriously, and that can mean skipping the rest day between singles ...
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