" “Hey Roger, are tennis balls green or yellow?” the man asked in a video that has gone viral. Not missing a beat, Federer answered with complete certitude. “They're yellow!” he said with a smile." 

" I am eager to dedicate even more time to the foundation in the coming years, visiting more of the projects on-site, and delving deeper into effective philanthropy. I would be honoured if you would continue to join me on this journey as a philanthro