Rooney joined Everton at the age of nine and progressed through the club as one of its greatest ever prospects. It was Moyes who gave him his first team breakthrough back in 2002 before working with him again when appointed manager of Manchester United.
Rooney became the second youngest player – behind Joe Royle – to feature in the Toffees first team and remains recognised as one of the greatest players in the game.
He knows much about the Hammers manager and has been explaining his sometimes seemingly archaic approach to the game.
What he has to say will probably come as little surprise to those Hammers who believe Moyes is indeed pretty old fashioned in his approach to formations, tactics and players themselves.
The former striker mentions just one example and it may help to explain why Lucas Paqueta was rushed back from injury after the injury he suffered at Arsenal.
Rooney explained when speaking on the Overlap Podcast that the Scot would never use GPS tracking during training sessions.
Moyes has previous with Paqueta bringing him back into the team last term or our games against Southampton and Chelsea. The Brazilian was hit by injuries in both.
That, according to Rooney, he prefers to trust his own eyes fits what we know about the man who also refuses to sign players until he has run the rule over them.