West Ham have responded to a Julen Lopetegui walkout claim with a major and exciting transfer pledge Hammers News can exclusively reveal. A rather shocking claim emerged today regarding new West Ham head coach Julen Lopetegui. West Ham fans will be well aware that Lopetegui walked out on former club Wolves on the eve of last season over broken promises regarding transfers. West Ham’s owners have been warned that made the Spaniard a somewhat risky appointment. After a period of stability under David Moyes, the last thing the Hammers hierarchy need is their new head coach walking out on the club…