HIGHLIGHTS-Tennis-Day two at the Australian Open

Highlights of the second day at the Australian Open, the first Grand Slam tournament of the year, on Tuesday (times AEST; GMT+11): 1557 SHARAPOVA CASTS DOUBT OVER MELBOURNE RETURN

Former champion Maria Sharapova said she was unsure if she would be back at the Australian Open next year after the wild card suffered a third successive first-round exit at a Grand Slam. "I don't know. I was fortunate to get myself to be here... it's tough for me to tell what's going to happen in 12 months' time," the five-times Grand Slam champion, who has been hampered by a shoulder injury, told reporters.

1544 KYRGIOS PREDICTS 'BIG THINGS' FOR AMERICAN PAUL American Tommy Paul drew praise from local favourite Nick Kyrgios following his 4-6 6-4 6-4 6-4 win over Argentine Leonardo Mayer for his first Grand Slam main draw victory.

"Only the beginning. This kid is gonna do big things," Kyrgios tweeted. READ MORE

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1537 THIEM TOO GOOD FOR MANNARINO AGAIN Fifth seed Dominic Thiem maintained his 100% record against Adrian Mannarino, winning an eighth career meeting with the Frenchman 6-3 7-5 6-2 to move into the second round.

1510 ANISIMOVA BIG FAN OF LOCAL CANDY American teenager Amanda Anisimova has had plenty of time to indulge her sweet tooth ahead of her first-round meeting with Kazakh Zarina Diyas. "Why is candy in Australia so good? So underrated," the 18-year-old tweeted before the match.

1445 BENCIC HAPPY TO LET SHAKY SERVE HELP BUSHFIRE RELIEF Belinda Bencic, who has pledged to donate $200 for bushfire relief efforts with each double fault she serves at the Australian Open, said she could easily had more than the four in her win over Slovakia's Anna Karolina Schmiedlova.

"It's great. I could have done more, but I didn't," a smiling Bencic told reporters before being reminded that she also hit four aces. "Yes, so I can maybe donate (for) both." 1421 KEYS MOVES INTO SECOND ROUND, SHARAPOVA CRASHES

American Madison Keys, a semi-finalist here in 2015, blasted 29 winners in a 6-3 6-1 win over Russia's Daria Kasatkina, while 19th seed Donna Vekic fended off former champion Maria Sharapova 6-3 6-4. 1352 FOGNINI COMPLETES COMEBACK AGAINST OPELKA

Italy's Fabio Fognini, the 12th seed, battled back from two sets down to beat unseeded American Reilly Opelka 3-6 6-7(3) 6-4 6-3 7-6(5) in a match lasting three hours and 38 minutes. In other first-round matches carried over from a rain-hit opening day, Milos Raonic beat lucky loser Lorenzo Giustino 6-2 6-1 6-3 while Marin Cilic downed Corentin Moutet 6-3 6-2 6-4.

1257 PLISKOVA DOWNS MLADENOVIC Brisbane International champion Karolina Pliskova maintained her unbeaten start to the year with a 6-1 7-5 win over France's Kristina Mladenovic while sixth seed Belinda Bencic advanced to the second round with a 6-3 7-5 victory over Anna Karolina Schmiedlova.

1143 KONTA BUNDLED OUT BY TUNISIA'S JABEUR British 12th seed Johanna Konta was the first big-name player to be knocked out on Tuesday when Tunisia's Ons Jabeur thrashed her 6-4 6-2 in just over an hour on 1573 Arena.

The pair were one of the first matches to start on Tuesday after rain played havoc with the draw on the first day. Konta has been troubled by a knee injury for more than a year and had not played in more than four months as she tried to regain her fitness ahead of the season opening Grand Slam.

Jabeur sealed victory when Konta's defensive backhand sailed over the baseline and she now faces either Madison Brengle or Caroline Garcia in the next round. 1049 PLAY UNDERWAY EARLY

Play got underway early on the second day on the outside courts after a number of matches were suspended on day one due to torrential rain in Melbourne. The Bureau of Meteorology has forecast clearing weather with a high of just 22C (71.6°F).

Smoke from bushfires that affected qualifying has dissipated and Victoria's Environmental Protection Agency rated the air quality as good. (Compiled by Greg Stutchbury and Shrivathsa Sridhar; Editing by Peter Rutherford)

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