Redknapp is a huge fan of the Cameroon international.
"He's one of the best left-backs around," he told the Spurs website.
"He's quick, strong, aggressive and has amazing ability. His body strength is unbelievable. You watch when he goes for a 50-50, players bounce off him.
"There aren't many better than him, for sure and you certainly wouldn't want to play against him."