Five massive transfer deals that could be completed before the World Cup is over including Arsenal and Chelsea targets

Diego Costa – Atletico Madrid to Chelsea

Chelsea struggled terribly in front of goal last season despite having three fully fledged internationals leading their line with another one – Romelu Lukaku – foolishly sent out on loan, and Jose Mourinho has promised to remedy that problem with the signing of Spain’s hottest hit man. The £32m move has been in the pipeline for a while now, and last week Costa said an emotional farewell to the Atleti faithful. With Spain set to wrap up their short stint in Brazil this week the move may finally be completed.