Despite spending a combined £85 million on David Luiz, Marcos Alonso and N'Golo Kante in the summer transfer window, Chelsea's defensive frailties remain.
The Blues conceded 53 goals in the Premier League last season and finished in a disappointing 10th position with +6 goal difference as a result.
Upon his arrival, Antonio Conte sought to rectify the issue but seven games into the new campaign and it's become abundantly clear that another shake up is needed.
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Chelsea's weaknesses at the back were particularly noticeable during last month's 3-0 defeat to Arsenal, where the centre-back duo of Gary Cahill and Luiz were torn apart by the pace of Alexis Sanchez, Mesut Ozil and Theo Walcott.
Conte has now made a new defender his priority in the upcoming winter transfer window and he's earmarked Juventus' Leonardo Bonucci as his top target.
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A fee in the region of £50-60 million was discussed in the summer but the Old Lady held firm in their stance that they don't want to cash in on the Italy defender.
However, according to The Sun, Juve are now prepared to sell Bonucci if Chelsea offer £50 million plus Cesc Fabregas in a player-plus-cash deal.
Massimiliano Allegri is reportedly a big fan of the midfielder and regards him as the perfect replacement for the ageing Claudio Marchisio, who turns 31 in January.
Chelsea will likely baulk at the thought of offering £50 million plus their Spanish playmaker, but using Fabregas in a deal to sign Bonucci might be a good idea.
His future at Stamford Bridge has been in doubt ever since Conte arrived at Stamford Bridge following Euro 2016 and one start in the Premier League this season only serves to reinforce that notion.
This is despite Conte recently insisting Fabregas is in his plans moving forward.
He said in mid-September, per the Independent: "Cesc is in my plans and in Chelsea's plans.
"In my opinion he's improving a lot on many aspects, above all the defensive situations. If he continues in this way, it'll be very difficult for me to choose my midfield.
"But I want this from a player, putting many doubts in my mind over choosing someone else. I'm very clear with my players: when a player deserves to play, I put him in the team."
Conte has a decision to make: keep Fabregas and risk losing out on Bonucci, or agree to Juventus' player-plus-cash deal and sign a world-class centre-back.
Good luck deciding that one, Antonio.