Atletico Madrid want are eager to sign a left-back in the summer transfer window and their key targets are Chelsea’s Filippe Luis and Arsenal’s Nacho Monreal.

Marca have reported that Atleti manage Diego Simeone wants to bring in a new left-back and bringing back his former player Luis is his key priority.

Luis left Calderon only last summer but has failed to establish himself under Jose Mourinho as Cesar Azpilicueta is Mourinho’s preferred left-back at the moment.

Luis is tipped for Stamford Bridge exit in the summer and a move back to his former side looks an obvious option. But if the deal falls through, Spanish side have earmarked Nacho Monreal as the ideal backup option to Luis.

Atletico Madrid are also preparing for a summer exit for two of their stars Koke and Antoine Griezmann. Simeone is aware of Griezmann’s wish to join the Blues this summer and Atleti manager is hopeful over a deal to bring Luis back to Calderon.