PLAYER OF THE DAY Lleyton Hewitt - the retiring great received a thunderous send-off after his 20-year professional tennis career officially came to an end with a 6-4 6-2 third-round Australian Open doubles loss with Sam Groth
KEY MOMENT There was no way back for Hewitt and Groth after Canadian Vasek Pospisil and American Jack Sock, the 2014 Wimbledon doubles champions, claimed two early breaks in the second set at Margaret Court Arena 
STAT OF THE DAY World No 1 Serena Williams' 6-2 6-1 win over Russian Margarita Gasparyan thrust the defending champion into her 10th Open quarter-final
TOURNAMENT SUMMARY Williams' romp set up a quarter-final blockbuster against Maria Sharapova in a sequel to the superstars' 2015 title decider won by the American, while Novak Djokovic will face Japanese ace Kei Nishikori in a marquee men's last-eight clash
QUOTE OF THE DAY "I hate being by myself. As much as I always am, like, 'I want to be alone', I don't think I like it so much. It's just been, it's been long. I feel like I have been here for three months" world No 1 Serena Williams prefers the isolation of a tennis court to off-court solitude RESULTS MEN'S FOURTH ROUND 6-T Berdych (CZE) bt 24-R Bautista (ESP) 4-6 6-4 6-3 1-6 6-3. 1-N Djokovic (SRB) bt 14-G Simon (FRA) 6-3 6-7(1) 6-4 4-6 6-3. 7-K Nishikori (JPN) bt 9-J Tsonga (FRA) 6-4 6-2 6-4.
WOMEN'S FOURTH ROUND 10-C Suarez (ESP) bt D Gavrilova (AUS) 0-6 6-3 6-2. 4-A Rad-wanska (POL) bt A Friedsam (GER) 6-7(6) 6-1 7-5. 1-S Williams (USA) bt M Gasparyan (RUS) 6-2 6-1. 5-M Sharapova (RUS) bt 12-B Bencic (SUI) 7-5 7-5.
MEN'S DOUBLES SECOND ROUND M Cecchinato/A Seppi (ITA) bt 15-M Lopez/F Lopez (ESP) 1-6 7-6(1) 7-5. THIRD ROUND 14-T Huey (PHI)/M Mirnyi (BLR) bt 4-R Bopanna (IND)/F Mergea (ROU) 6-4 6-3. 9-V Pospisil (CAN)/J Sock (USA) bt S Groth/L Hewitt (AUS) 6-4 6-2.
16-P Cuevas (URU)/M Granollers (ESP) bt 2-I Dodig (CRO)/M Melo (BRA) 7-6(3) 2-6 6-3. D Nestor (CAN)/R Stepanek (CZE) bt P Andujar/P Carreno (ESP) 5-7 6-4 6-4.
WOMEN'S DOUBLES THIRD ROUND A Rodionova/A Rodionova (AUS) bt D Cibulkova (SVK)/K Flipkens (BEL) 5-7 6-2 6-4. 2-C Yung-Jan/C Hao-Ching (TPE) bt J Rae/Anna Smith (GBR) 6-3 6-4. 12-A Gronefeld (GER)/C Vand-eweghe (USA) bt M Lucic-Baroni (CRO)/B Strycova (CZE) 7-6(5) 3-6 6-3. 7-A Hlavackova/L Hradecka (CZE) bt 10-A Medina/A Parra (ESP) 6-2 7-6(7).
TODAY'SSCHEDULE ROD LAVER ARENA 11am: 7-Angelique Kerber (GER) v Annika Beck (GER). 14-Victoria Azarenka (BLR) v Barbora Strycova (CZE) Not Before 2pm: 13-Milos Raonic (CAN) v 4-Stan Wawrinka (SUI) 7pm: 16-Bernard Tomic (AUS) v 2-Andy Murray (GBR), 15-Madison Keys (USA) v Shuai Zhang (CHN)
MARGARET COURT ARENA 11am: 3-Caroline Garcia (FRA)/Kristina Mladenovic (FRA) v 13-Julia Goerges (GER)/Karolina Pliskova (CZE), Andrey Kuznetsov (RUS) v 23-Gael Monfils, 1-Martina Hingis (SUI)/Sania Mirza (IND) v Svetlana Kuznetsova (RUS)/Roberta Vinci (ITA), Johanna Konta (GBR) v 21-Ekaterina Makarova (RUS)
HISENSE ARENA11am: 15-Yi-Fan Xu (CHN)/Saisai Zheng (CHN) v Su-Wei Hsieh (TPE)/Oksana Kalashnikova (GEO) Not Before 12.30pm: 3-B Bryan (USA)/M Bryan (USA) v 13-R Klaasen (RSA)/Rajeev Ram (USA), W Ferreira (RSA)/M Wilander (SWE) v W Arthurs (AUS)/M Chang (USA), A Rodionova (AUS)/Matt Reid (AUS) or S Stosur (AUS)/J Peers (AUS) v 2-B Mattek-Sands (USA)/B Bryan (USA) Not Before 6.30pm: 8-David Ferrer (ESP) v 10-John Isner (USA)