The former Spurs boss believes Henry's attitude and leadership qualities can help Rangers win promotion back tothe top flight.
"I've always liked Karl," he told the Evening Standard. "He's a good sort, he's a competitor. He looks like he wants to win.
"He's captain of Wolves and whenever I came up against him he always had that attitude about him that he's very determined. I think he is what we need at the club.
"He's a bit of a leader on the pitch and he will be a big asset for us. He is having a medical and it should go through today (Tuesday)."