West Ham officially announced that Patrice Evra and James Collins will leave the club as their contract are going to expire in a month.Evra joined West Ham in mid-season after having his contract terminated with Marseille because of shocking accident with the fan in Europa League match against Vitoria.Collins will tur 35, and club thinks his time is over.Manuel Pellegrini has been appointed West Ham new manager and it seems Chilean specialist wants to buy younger defenders.