ATP - donating the $25,000 sanctioning fee for the Chennai Open to UNICEF emergency efforts in the state of Tamil Nadu.
Roger Federer, Andy Roddick, Lleyton Hewitt - Will auction autographed rackets, with the money also going to UNICEF relief.
Tennis Australia - Collecting donations for UNICEF during the eight tournaments to be held this summer, including the Australian Open.
Jonas Bjorkman & Mahesh Bhupathi - donating their entire earnings from next week's ATP Chennai Open and pledged to persuade other players to do the same.
Sharapova - Donating $10,000