Serbia's Ana Ivanovic signs autographs after winning her first round match against Spain's Lourdes Dominguez Lino at the Australian Open tennis championship, in Melbourne, Australia, Tuesday, Jan. 17, 2012. (AP Photo/Rick Rycroft)

Associated Press
Serbia's Ana Ivanovic signs autographs after winning her first round match against Spain's Lourdes Dominguez Lino at the Australian Open tennis championship, in Melbourne, Australia, Tuesday, Jan. 17, 2012. (AP Photo/Rick Rycroft)
Serbia's Ana Ivanovic signs autographs after winning her first round match against Spain's Lourdes Dominguez Lino at the Australian Open tennis championship, in Melbourne, Australia, Tuesday, Jan. 17, 2012. (AP Photo/Rick Rycroft)
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