REVEALED: Chelsea scouting report of Wigan laid bare
The former Mallorca keeper has a masters in sports psychology and gained his goalkeeping badges from the Spanish Football Federation. Benitez went through Valero's document line by line with the players on Friday afternoon and used video analysis to help illustrate key tactical points.
The report included a review of the strengths and weaknesses of each Wigan player, a probable formation and predictions of how manager Roberto Martinez would have his team play at Stamford Bridge.
While disappointed to see his report made public, Valero will be delighted with the result - a 4-1 win in Chelsea's favour.