Live updates: Brisbane International, United Cup day six, Kimberly Birrell scores upset win over Emma Navarro
ABCAustralia's Kimberly Birrell defeats world number eight Emma Navarro in straight sets at the Brisbane International, while Novak Djokovic and Nick Kyrgios will later resume their doubles partnership. Brisbane International: Brilliant Birrell wins first S By Simon Smale Superb stuff from Kimberly Birrell, who has claimed a very high-quality first set against number two seed Emma Navarro 7-5. United Cup: Muchova challenges Swiatek early M By Marnie Vinall It's a pretty even battle so far on Ken Rosewall Arena in Sydney between Czechia's Karolina Muchova and Poland's Iga Swiatek. Canberra International: Aussie Preston loses first set L By Luke Pentony Australia's Taylah Preston has dropped the first set in her round-of-16 match against Canadian sixth seed Marina Stakusic.