World number one tennis player Novak Djokovic has been announced as the new brand ambassador for The Australia and New Zealand Banking Group (ANZ), and has helped the company launch the #rallyforgood campaign - the world's first tennis rally on social media to raise money for local community programmes across the Asia Pacific region.

The initiative invites people to share a photo or video of themselves hitting a tennis ball on social media, using the hashtag #rallyforgood, and then tag a friend and invite them to continue the rally. ANZ will donate $2 for every 'shot' someone shares.