Ana Ivanovic pulled off an impressive upset of No. 1 seed Serena Williams 4-6, 6-3, 6-3 in the Fourth Round of the Australian Open.
Ivanovic closed as a 15/2 underdog according to Sportsbook.ag, The upset didn't cost them too much however, since 88 percent of the money was on Williams.
Futures for the Aussie Open were also hardly affected since no one outside of Williams was given much of a chance.
It was the first time Williams lost a match since last August.