Former Chelsea striker Tony Cascarino believes Lewis Dunk would be a good signing for the club.
The Blues are eying defensive reinforcements, and have been linked to Ben Chilwell, John Stones and Dunk in recent weeks.
While Cascarino is not sure about left-back Chilwell, he believes Brighton's Dunk would be good value.
He told talkSPORT: "Chilwell is a very good player, a very good footballer but I don't think he's the greatest defender, as a left-back, which sort of ticks a few boxes that Chelsea are already suffering with, with [Marcos] Alonso at left-back. He's probably quite guilty of being far better going one way than the other. Also Emerson.
"It's a lot of money. I watched him against Watford [a 1-1 draw in June] and Ismaila Sarr absolutely ran him ragged. I was quite surprised how easily he got the better of Chilwell on the day.
"He's a good footballer and he's very good creatively going forward. I just think it's a huge price for someone.
"I think Chelsea need, in both positions, really good full-backs who can do the defensive work duties really well.
"Reece James is a great right-back. You can play him in a five and push him on when you want an attacking minded game but Chelsea leak too many goals and their full-backs are very pivotal to the way they play.
"There are a lot of times in games that their full-backs are being exposed and exploited and they're paying the price."
On Dunk, Cascarino added: "He's not just a brute that wins headers. He's a fine footballer. If you said to me, of the bottom half of the table who I think is the very best centre-half, I think it's him.
"His consistency over a number of seasons has been brilliant. His partnership with [Shane] Duffy was exceptional. He's moved from a two to a three and he's done really well in the three as well.
"[Brighton] are a side who have changed their backline so he's capable of playing not only in a back-four but a back-five, so I think Dunk is well capable and I think he will have that move and because of his level of performance I think he's owed a chance to play for a top-six club because he's good enough."
