HIGHLIGHTS-Tennis-Day nine at the Australian Open

Highlights of the ninth day at the Australian Open, the first Grand Slam tournament of the year, on Tuesday (times AEDT; GMT+11): 1848 FEDERER DIGS DEEP TO DEFEAT SANDGREN

Six-times champion Roger Federer saved seven match points in his clash against unseeded American Tennys Sandgren, prevailing 6-3 2-6 2-6 7-6(8) 6-3 to reach his 46th Grand Slam semi-final. The victory was Federer's 102nd at Melbourne as the 38-year-old Swiss surpassed his tally at Wimbledon.

1813 MUM'S THE WORD FOR BARTY Australia's Ash Barty battled past Petra Kvitova with her family watching on in the stands and the world number one was asked about the role her mother Josie plays in her career.

"To me she's mum. That's all she is... she wears a million hats for our family... does the exact same things for me as she does for my sisters. I love her just being mum," Barty said. READ MORE

Barty avenges Kvitova defeat to reach semi-finals Barty wishing for 'quiet little life' amid Australian Open frenzy

Kenin beats Jabeur to reach maiden Grand Slam semi-final Career took off after French Open win over Serena, says Kenin

Nadal rides out Kyrgios challenge to reach quarter-finals Djokovic leads tennis community in mourning 'mentor' Bryant

Wawrinka finds the answers to take down Medvedev Thiem sails past Monfils into maiden Melbourne quarters

Zverev halts Rublev juggernaut to reach first Melbourne quarters Pavlyuchenkova ousts former champion Kerber to reach quarters

Counter-punching Halep beats Mertens to reach quarters Kontaveit holds off teenager Swiatek to reach last eight

Muguruza powers past Bertens into last eight Coaches welcome WTA trial of allowing coaching from box

McEnroe hopes Serena can beat 'crazy aunt' Court's record Australian Open order of play on Tuesday

Australian Open order of play on Wednesday 1450 BARTY ACES KVITOVA TEST

Top seed Ash Barty came through a tough opening set before switching gears to beat 2019 runner-up Petra Kvitova 7-6(6) 6-2 in the quarter-final to keep alive Australia's hopes of a first women's champion in 42 years. 1424 JABEUR FEELING THE LOVE FROM TUNISIA

Following her straight-sets quarter-final defeat by American Sofia Kenin, Ons Jabeur reflected on the impact her Melbourne run has had back home in Tunisia. "My phone is still going crazy right now. I actually talked to the president of Tunisia. He called me, wished me good luck. That was really nice of him," Jabeur, the first Arab woman to reach the last eight of a Grand Slam, told reporters.

1249 KENIN FELLS JABEUR TO SEAL SEMI-FINAL SPOT American Sofia Kenin fired 34 winners in a solid 6-4 6-4 victory over Tunisia's Ons Jabeur to reach the semi-finals of a Grand Slam for the first time.

1105 KENIN, JABEUR ON COURT TO OPEN QUARTER-FINALS American 14th seed Sofia Kenin and Tunisia's Ons Jabeur is first up on Rod Laver Arena with both playing in their first Grand Slam quarter-final match.

Local favorite and world number one Ash Barty will follow the pair onto the main show court against last year's beaten finalist Petra Kvitova, while Roger Federer closes the day session against American journeyman Tennys Sandgren. Seven-times men champion Novak Djokovic faces the resurgent Canadian Milos Raonic in the evening.