Designer Stella Mccartney has recruited a sporty new spokesmodel, Russian teenage tennis prodigy Maria Kirilenko.

Kirilenko, 19 this week (ends27JAN06), will be the face of the rock heiress' new line of tennis wear.

The beauty showed off one of McCartney's new outfits while warming up for a recent Australian Open match in Melbourne, and was wished luck by her new boss, who sent her a note that read, "Now get out there and kick a**."