Bermudian boxer Andre Lambe said he expects his toughest test when he faces unbeaten American Pryce Sparrow in Galveston, Texas, on June 6. Lambe [12-0] will defend his American Boxing Organisation North American welterweight title against 19-year-old Sparrow [5-0] at the Galveston Island Convention Centre in an eight-round co-main event. Sparrow defeated Mexican Eduardo Hernandez …