Sport science expert, Professor John Brewer, who was a member of England manager Bobby Robson’s support team at Italia 90, talks about the struggles the players will be under in the Manaus heat against Italy on Saturday night – with the Lucozade Conditions Zone replicating the conditions:

http://www.dailymail.co.uk/video/football/video-1099915/John-Brewer-England-shouldnt-try-replicate-Premiership-tempo.html