Pochettino admits Davies' position in the squad has not been easy but he is an example of a player whose fight pushes the rest of the squad.
The Spurs boss said: "Always it's difficult to share a position with Danny Rose, who is one of the best left-backs in Europe, but Ben has worked very hard to find his place.
"He is a fantastic professional and boy. Only I can praise him because his position wasn't easy from the beginning, but he kept fighting, always waiting for his opportunity to play.
"He fully deserves to improve his contract and salary because, when we are talking about the team and the squad, this player deserves all the credit to keep fighting to keep up the level of the squad."