The World Cup, apparently the pinnacle of football achievement, can often prove to be quite a leveller when it is compared to the English game, and that is no more apparent than at Arsenal. David Ospina will stand guard for Colombia against England, knowing that whatever heroics he pulls off will have little impact on his own future. The 29-year old signed for Arsene Wenger in 2014 for £3m but has never managed to force himself into the first team picture.…