A new face will train with West Ham tomorrow a source close to the Hammers board has confirmed ahead of the first day back at Rush Green. New Hammers head coach Julen Lopetegui officially started work at West Ham on Monday. But his first proper day in charge comes tomorrow when West Ham return to pre-season training. Day one of pre-season will see West Ham’s non international players undergo stringent tests, scans and assessments including cardiac screens. Blood tests, weight and body fat measurements and a host of health and fitness checks will take place. Lopetegui will be joined by his all-…