A club insider has revealed the truth on fresh Julen Lopetegui claims as the lid is lifted on his West Ham connection. It is being reported that David Sullivan has a preferred choice to take over as manager at West Ham. And that man is Julen Lopetegui. David Moyes is looking all but certain to leave the Hammers when his contract expires in the summer. That much has been made clear by West Ham’s sudden activity in lining up a potential replacement. Sporting boss Ruben Amorim flew in for talks but less than 24 hours later was already ruled out. Meanwhile the Hammers are being linked with a pleth…