Chelsea captain John Terry rates Ricardo Carvalho as the best centre-half in the Premiership.
Terry told chelseafc.com: "There's so many [good ones]. It's difficult to look any further than Chelsea when you look at Carvalho.
"Alex came in and had a very good year and for England, I play alongside Rio Ferdinand as well, who's got all the attributes.
"I've come up against some of the best in the world in the Champions League, and with England, but when I get the chance to train and play with these guys day in, day out, you realise how good they are. So I wouldn't look any further than Riccy and Rio."