Mumbai: India's tennis star Sania Mirza has lent her support to the cause of animal welfare, calling for adoption of homeless dogs and cats in a new ad campaign for People for the Ethical Treatment of Animals (PETA).

Sania, who became the first female tennis player from India to achieve the world number one rank in doubles along with partner Martina Hingis in April, stars with her rescued cat, Posh in the adorable print ad.