West Ham fans enjoy telling everyone how massive they are but Ray Parlour believes one man is stopping them realising their true potential. In terms of support West Ham are one of the biggest clubs in Europe let alone England. Last week West Ham were named in a new UEFA report as part of their “1 million crowd club”. Only 16 clubs feature in the elite group and West Ham are among them. The group factors in capacity and a percentage filled of capacity for all games from league to domestic cups and European competition. And West Ham, with an official capacity of 62,549 at the London Stadium, are…