Real Madrid and Chelsea stars Iker Casillas and Oscar have been announced as brand ambassadors of New York-based sports technology start-up Storelli, reports, www.sportspromedia.com/.

Chelsea midfielder Oscar and former-Real Madrid and Spain captain Iker Casillas will work on Storelli's new marketing campaign, a film entitled The Dark Side of the Beautiful Game.

The firm create injury-preventing performance gear for soccer players, and are aiming to bring the brand to a wider audience with the use of the two stars.

"Storelli is breaking with conventions around football protection," said Mark Schermers, chief marketing officer at Storelli.

"We are reframing what performance gear is and the film featuring superstars Casillas and Oscar showcases how Storelli is a potent antidote to injuries."