Novak Djokovic defeated Roger Federer for the second time in a month, a 6-3, 6-3 victory Saturday for his third consecutive Dubai Championships title. Djokovic extended his unbeaten streak in 2011 to 12 matches with his 20th title. The third-ranked Serb beat Federer in the semifinals on his way to winning the Australian Open. Read more: http://sports.espn.go.com/sports/tennis/news/story?id=6161258
