Phillips is only 23 but the Thorp Arch graduate made his first-team debut for United under Redfearn in an away game at Wolves way back in 2015.
He has since developed into one of the Championship's finest young midfielders and could get a first taste of Premier League action next season if Leeds win the playoffs.
Phillips has come a very long way in four years, and he is forever grateful to Redfearn, sacked by then-Whites owner Massimo Cellino a month later, for the faith he afforded him as a teenager.
He told The Yorkshire Evening Post: "Neil Redfearn knew what kind of player I was. He gave me my chance at Wolves, which is probably one of the best games I’ve played in with everything that went on.
"I trusted him and I’m grateful to him for bringing me through. Look where it’s got me.”
If Leeds are going to win Premier League promotion, Phillips is going to have a big role to play.
You could argue that he and Pablo Hernandez have been far and away Marcelo Bielsa's most influential players this season, and the Argentine coach is going to need both at the top of their game over the coming weeks.
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