The summer transfer window has all of a sudden gone into overdrive for West Ham United. Exciting times lie ahead for West Ham, after Julen Lopetegui and Tim Steidten finally started to make some concrete moves yesterday. It must be remembered – the Hammers have already made three very solid signings in the form of Max Kilman, Luis Guilherme and Wes Foderingham. However, the imminent arrivals of Crysencio Summerville and Aaron Wan-Bissaka will take the Hammers to another level entirely. West Ham are said to be in advanced talks with the Manchester United star whilst Summerville is believed to b…