Jelena Jankovic had put a brave face on some indifferent form this week - and many at the JB Group Classic were wondering what was wrong with the Serbian world number one.
Yesterday the 23-year-old came clean.
Jankovic pulled out of her Silver Group finals singles match against Zheng Jie with the flu - and now faces a anxious wait before the first grand slam event of the year, the Australian Open, which starts on January 19.
'I have a flu and I've been feeling weak and sick for the last couple of days,' said Jankovic.
'I've been trying my best to go on the court but it is obvious that I feel slow and have no reactions. It's really been a struggle for me.
'I really wanted to go out there for the crowd. I think it was a great opportunity for me to play some matches and get some form before the Australian Open but sometimes you cannot control it. Nobody likes to be sick, now I'm on medication and I have to rest and try to recover as fast as possible and then we will see how everything will go.'