Sam Stosur will dedicate her Australian Open campaign to her beloved grandfather, Jan, who has died.
"Can I start by saying I would like to dedicate Australian Open 2011 to my dear grandpa Jan Stosur," Stosur said.
"I have just learnt that he passed away a few hours ago.
"He had been sick for a while, but it doesn't really lessen the shock.
"He was my last surviving grandparent and has always been there for me throughout my entire life.
"Our whole family is going to miss him dearly.
"Something like this really puts everything into perspective and I am determined to do him proud over the next fortnight."
Stosur, who will play highly regarded American wildcard Lauren Davis in the first round, also has been affected by the Queensland floods.
"I have been watching a lot of the coverage on the television and it is heartbreaking," she said.
"It is just a disaster, a tragedy and we feel for everyone up there.
"A lot of the tennis players here in Melbourne are talking about it and we all just want to do our little bit and hopefully we can raise lots of money (at tomorrow's Rally for Relief event).
"In the big scheme of things, it's not going to seem like that much. But every little bit counts. It's already sold out.
"I think it is great that everyone can put aside the tennis for a moment and show how much they care.
"I also want to keep going with the aces scheme we started in Brisbane with Andy Roddick.
"I originally came up with an idea to donate $100 for every ace I served from the Brisbane International to the Aussie Open.
"But the further it goes, the more I feel I want to do a little bit more. Besides I don't think I've served enough aces!
"I am upping it to $500 an ace and also made it retrospective.
"I think I've hit 13 or 14 aces so far in Brisbane and Sydney.
"They'll be worth $500 each to the flood relief appeal and I am determined to add a whole lot more by the end of the Aussie Open.
"So, after a long build-up, it is finally here. I can't wait. This one's for you, grandpa."