Grey Atlanta has created a global ad campaign, called "Looking for a hero", for the Sony Ericsson Women's Tennis Association Tour.
The ad features 10 women's tennis players including Maria Sharapova, Ana Ivanovic and Serena Williams.
It begins with shots of the women going about their daily lives dressed in casual clothes. Then each woman receives a phone call on their Sony Ericsson mobile phone and dashes off 'Charlie's Angel' style.
The women re-emerge dressed in their tennis kits ready to compete.