Sony Ericsson and the WPP Group (specifically, Grey, Schematic and GCI Group) have launched a “landmark” advertising campaign for  the Women’s Tennis Association. The ad was launched June 18, and will break in 75 countries over the next year and a half.

According to Sony Ericsson, the campaign ($15 million over three years)  is the “single largest commitment to promote the Sony Ericsson WTA Tour players” in the history of the tour. It will include TV, print, digital and viral advertising, and will gather momentum stateside around the US Open in August. More info here.