Inside Man Utd’s marginal gains on pre-season tour with stars given special sleep and meal windows & told when to drink

MANCHESTER UNITED are going to extraordinary lengths to ensure they get their players’ best performances on their tour of the USA.

Sir David Brailsford always emphasised the search for marginal gains in his successful time as the head of British cycling.

GettyNew signing Leny Yoro touches down in California[/caption] GettyVictor Lindelof is facing increased competition this season[/caption] GettyAmad Diallo will hope to continue his rise[/caption] GettyChristian Eriksen...