"I go to all the home games and after watching his debut I wasn't very impressed," Yeats told LFC TV. "When I say I wasn't impressed I mean, I thought he was a bag of nerves. But I thought he must have something about him.
"In the games that followed he showed that he was very good player. He's got a bit of pace and boy can he tackle and head the ball.
"That's what you want from a centre back. I think he's only 23 and with him Agger, Carragher and the boy Hobbs, we are well endowed with centre backs.
"And of course there's Sami Hyypia. He's my favourite player I must admit. I went twice to see him and then I recommended him because I thought he was something else.
"He doesn't have a lot of pace, he'll tell you that, but he can read the game. He's a super passer of the ball too."