The sport and automotive specialist agency has been tasked with raising awareness of the cup - which is one of a number of initiatives being undertaken by the retailer to encourage healthy living.
It also forms part of its target of getting two million people active before the 2012 Olympics.
As official England supermarket and official development partner for Women's Football, Tesco's partnership with The FA includes both the Tesco Cup, now in its fourth year, and the FA Tesco Skills programme.
The Tesco Cup is aimed at both improving the skills of young footballers and encouraging more children to play the game.
Performance PR will start work immediately to promote the County Cup winners' progression to April's Regional and National Finals.