Callum McManaman has signed a new two-year deal with Wigan Athletic.
McManaman, a distant relative of former Liverpool, Real Madrid and England midfielder Steve McManaman, is now committed to the Latics until 2013.
Martinez said: "Callum has continued to progress this season and we are delighted he has now signed this new contract.
"Callum represents a real example for every youngster at our football club.
"Technically, he's a very gifted player with a natural raw talent and over the last 10 months he's developed immensely, tactically and physically."
