HIGHLIGHTS-Tennis-Australian Open day 10

0435 CHUNG MASTERS TENNYS TO REACH SEMI-FINALS

Chung Hyeon became the first South Korean to reach the semi-finals of a grand slam when he beat American Tennys Sandgren 6-4 7-6(5) 6-3 in two hours and 28 minutes on Rod Laver Arena.

The bespectacled 21-year-old sealed victory when Sandgren went long after an extraordinary final game and will face reigning champion Roger Federer or Tomas Berdych in the last four.

0330 MADISON KEYS ON HER QUARTER-FINAL LOSS

"Sometimes you just don't play very well out there."

0215 FALSE ALARM ON ROD LAVER ARENA

The quarter-final between Tennys Sandgren and Chung Hyeon was disrupted early in the first set by an alarm broadcasting "Evacuate! Evacuate! Evacuate!" over the public address system.

The players returned to their chairs while umpire James Keothavong investigated and the match resumed after he had confirmed it was a false alarm.

0105 KERBER CRUSHES KEYS TO REACH SEMI-FINALS

Revitalised 2016 champion Angelique Kerber made a major statement of intent as she stormed into the semi-finals with a dominant 6-1 6-2 victory over Madison Keys.

"I'm really enjoying my tennis right now. I enjoy being on court, right now," the German said.

"I'm just happy to get through and be here in the semis."

READ MORE

Chung becomes Korea's first major semi-finalist

Kerber crushes Keys to reach Melbourne semis

Match points lost and saved drive Wozniacki

Zverev's record fine to cure early pull-outs

FACTBOX-Simona Halep v Karolina Pliskova

FACTBOX-Roger Federer v Tomas Berdych

Order of play on Wednesday

Edmund forehand is best in business - Wilander

The next Djokovic? Chung serves notice

0015 PLAY UNDERWAY WITH KERBER AND KEYS CLASH

Play got underway on schedule at 11 a.m. local time (0000 GMT) at Melbourne Park with Angelique Kerber and Madison Keys on Rod Laver Arena in the women's quarter-finals.

The temperature was 21 degrees Celsius (69 degrees Fahrenheit) and forecast to reach a high of 24. Read our preview of the day's action here: (Compiled by Nick Mulvenney; Editing by Greg Stutchbury/John O'Brien)