4th seeded Agnieska Radwanska and top seeded Serena Williams both advanced in straight set victories and will face each other in the semis. Radwanska breezed past tenth seeded Carla Suarez Navarro 6-1 6-3. Radwanska was simply more consistent than Suarez Navarro, hitting 13 unforced errors to the Spaniard's 45. The 26 year old pole is in search of her first ever Australian Open final. Serena steamrolled fifth seeded Maria Sharapova in dominant fashion 6-4 6-1. Williams won 73% of her first serve points, including 13 aces. She also won 52% of her second serve points, compared to Sharapova's 38% success rate in second serves. Defending champ Williams is seeking her 7th Aussie Open title. Serena is 8-0 against Radwanska and has won 16 of the 17 sets they've played.
Meanwhile, the top half of the bracket for the men's draw progressed in a similar manner. World number 3 Roger Federer and top seeded Novak Djokovic both won handily in straight set victories. Feeder beat Tomas Berdych 7-6 6-2 6-4. The serve and volleyer won 83% of his first serve points along with 83% of his net points. Berdych fought hard but couldn't match Federer's 48 winners. The 34 year old Federer hasn't won a grand slam title since 2012 at Wimbledon and his last Australian Open title was in 2010. Djokovic rebounded from his 100 error match against Simon in the fourth round to top 7th seeded Kei Nishikori 6-3 6-2 6-4. The defending champ hit 27 unforced errors to Nishikori's 54, decreasing his error total by almost 75% from the last match. He also took advantage of break points, going a strong 6/11. The best returner in the game won 60% of Nishikori's second serve points, and was simply more consistent all match. His poor outing against Simon may have lit a fire under the defending champ, who is seeking his record seventh Australian Open title. Djokovic is 22-22 all time against Federer, including 2-1 at the Australian Open. The three times Djokovic and Federer have played at the Aussie Open, the winner went on to claim the championship.