Former women's world number one Ana Ivanovic is in doubt for next week's ASB Tennis Classic in Auckland.
Ivanovic posted a cryptic message on social media saying she'll make an important announcement at 7am tomorrow.
My dear fans & supporters. Pls tune in to my Facebook page tomorrow at 6pm UK time, where I'll be sharing something important with you live. pic.twitter.com/qRwf16kw4a— Ana Ivanovic (@AnaIvanovic) December 27, 2016
The 2008 French Open champion is married to Manchester United and German midfielder Bastian Schweinsteiger.
Last week men's major drawcard Juan Martin del Potro pulled out of the tournament due to injury.
Meanwhile New Zealand national champion Jade Lewis has been given a main draw wildcard for the tournament.
This will be the first time the 18 year old will play a main draw event at the highest level as she looks to transition from the ITF Junior circuit to the WTA Tour.
Lewis had previously been awarded a qualifying wildcard off the back of winning the New Zealand Championships, however organisers felt the timing was right to give her her first WTA event experience.
Lewis has had prior experience at the ASB Classic playing in qualifying each of the last two years.
She is the niece of Chris Lewis who reached the final of Wimbledon in 1983 against John McEnroe.
Her father David and uncle Mark also played Davis Cup for New Zealand.