Tommy Paul has reached his first Grand Slam semifinal and ended the surprising run of Ben Shelton by winning their all-American matchup 7-6 (6), 6-3, 5-7, 6-4 at the Australian Open. Paul is the first man from the United States to make it to the final four at Melbourne Park since Andy Roddick in 2009. Paul will face 21-time Grand Slam champion Novak Djokovic in the semifinals Friday. Djokovic beat Andrey Rublev 6-1, 6-2, 6-4. Stefanos Tsitsipas and Karen Khachanov meet in the other men’s semifinal Friday. Aryna Sabalenka and Magda Linette advanced to the semifinals with victories. The other women’s semifinal is Victoria Azarenka against Elena Rybakina.