The Blues certainly need to add some attacking firepower to their squad this summer having seen Demba Ba, Samuel Eto'o and Fernando Torres struggle to score consistently, but it seems that manager Jose Mourinho is intent on adding another defender having allowed Ashley Cole and David Luiz to leave Stamford Bridge.
It's therefore little surprise to see him linked with a move to sign Argentine international Rojo, who has starred at left back for Alejandro Sabella's men at the World Cup. The 24-year-old could fill the losses of Cole and Luiz given that he plays at centre back for Sporting Lisbon in Portugal, and his versatility had already attracted interest from Premier League rivals Arsenal and Liverpool.
Yet the pursuit of Rojo actually raises some questions given that the Blues have been widely expected to confirm the signing of Atletico Madrid left back Filipe Luis for some time. The Brazilian international, 28, has been a key player under Diego Simeone in the Spanish capital, but reports suggest that the two clubs are having huge disagreements over the fee to be paid.
Luis has a buyout clause in his contract worth a reported €24m (£19m), but so far, Chelsea have only offered €15m (£12m) to sign him - which Atletico won't accept. They simply won't budge and are ordering the Blues to pay the £19m in Luis' contract - causing the deal to stall for some time now.
The news that Chelsea want to pursue a deal to sign Rojo could be a sign that the Luis deal is off, or at least heading that way. Chelsea could need to add another left back if Ryan Bertrand leaves the club, but given that he'd play a bigger role at Arsenal or Liverpool, it's unlikely that he'd accept a move to play behind Luis.
What's most fascinating is that Chelsea have reportedly opened talks with Sporting over a £15m move for Rojo, yet aren't willing to pay just £4m more to land Luis - who has proven himself to be a better left back than Rojo - even with the latter's impressive World Cup.