Djokovic, Murray, Nadal, Federer in Aussie Semis

 By DENNIS PASSA AP Sports Writer MELBOURNE, Australia January 25, 2012 (AP) Appearing uncomfortable for much of the match, defending champion Novak Djokovic held on to beat David Ferrer 6-4, 7-6 (4), 6-1 Wednesday night and complete a blockbuster semifinal lineup at the Australian Open. Djokovic leads the top four men in tennis into the [...]