Roberto Martinez unconcerned by Juventus link with Mino Raiola . Raiola has been involved in transfer deals worth over £400million . Martinez backs Ross Barkley to learn from his difficult season .
Roberto Martinez unconcerned by Romelu Lukaku 's link with Mino Raiola . Raiola has been involved in transfer deals worth over £400million . Martinez backs Ross Barkley to learn from his difficult season .