Sports Former champion Azarenka withdraws from the Australian Open

© Alan Diaz/AP Photo In this April 2, 2016, file photo, Victoria Azarenka keeps her eyes on the ball as she prepares to return to Svetlana Kuznetsova during the women's singles final at the Miami Open. MELBOURNE, Australia (AP) Two-time champion Victoria Azarenka has withdrawn from the Australian Open, with her wildcard entry to the season's first major reallocated to Ajla Tomljanovic.

Australian Open organizers announced Azarenka's withdrawal in a social media post Monday, a week before the tournament begins.

''It's unfortunate that (Azarenka) is unable to travel to Australia this year,'' organizers posted on Twitter, quoting tournament director Craig Tiley. The Australian Open, ''is her favourite tournament and she's looking forward to returning to Melbourne next year.''

Germany improves to 2-0 at Hopman Cup with win over Canada

Alexander Zverev and Angelique Kerber gave Germany its second consecutive win at the Hopman Cup mixed teams tennis tournament with singles victories Wednesday over Canadians Vasek Pospisil and Eugenie Bouchard. No. 4-ranked Zverev beat Pospisil 6-4, 6-2 and Kerber, the 2016 Australian Open and U.S. Open champion, defeated Bouchard 6-1, 6-3. Canada fell to 0-2 after an opening loss to Australia. Germany beat Belgium in its first match. Bouchard, a former Wimbledon finalist and top-five player now ranked 83rd after a concussion and form slump, said the 10 a.m. start time was too early for her.

MELBOURNE, Australia — Two-time champion Victoria Azarenka has withdrawn from the Australian Open , with her wildcard entry to the season’s first major reallocated to Ajla Tomljanovic. Australian Open organizers announced Azarenka ’s withdrawal in a social media post Monday

MELBOURNE, Australia (AP) — Two-time champion Victoria Azarenka has withdrawn from the Australian Open , with her wild-card entry reallocated to Ajla Tomljanovic of Croatia. Open organizers announced Azarenka 's withdrawal in a social media post on Monday

Azarenka, who won the Australian Open in 2012 and 2013, has been involved in a custody dispute involving her son Leo, who was born last December 19.

She hasn't competed anywhere since Wimbledon, where she lost to Simona Halep in the fourth round on July 10.

Azarenka played only six matches in 2017 and her year-ending ranking plummeted to No. 208.

Australian Open organizers last month granted her a wildcard entry, with Tiley saying at the time ''Vika's current situation is obviously very difficult for her and we have reached out to offer any support we can.''

The Australian Open starts next Monday at Melbourne Park. Defending champion Serena Williams has already withdrawn, saying her game wasn't back to a level where she believed she could contend for the title just four months after giving birth to her first child.