Atletico Madrid star Koke says Chelsea defender Filipe Luis has the chance to return to the Spanish side, insisting there is no ill will towards the player after his exit last summer.
Filipe Luis, 28, was part of the Atletico side that broke Barcelona and Real Madrid's monopoly on the Spanish title in 2014, and he has been heavily linked with a return to the Vicente Calderon.
The Brazil international was unable to displace Cesar Azpilicueta at left-back and made just 15 appearances for the Blues in the 2014-15 season.
Atletico manager Diego Simeone is ready to welcome the player back to Spain should Chelsea be ready to do business, while Koke has reassured his former teammate he will not be looked upon as a traitor.
"Filipe Luis decided to leave and now he has the chance to return," Koko told Marca.
"If he arrives, there will be more competition, and that's good. We'll be a better team and fight for more things. He is no traitor. As long as he plays and plays well there won't be any problem."
Filipe Luis won La Liga in his final season in Spain and the club have struggled to fill the void he left. Guilherme Siqueira was brought in from Granada while Cristian Ansaldi arrived on loan to provide cover, but neither proved to be an able replacement. As a result Jesus Gamez, a right-back by trade, often filled the left-back slot last season.
Atletico have made no secret of their desire to bring Filipe Luis back to the Spanish capital, with Simeone telling Spanish daily AS in June: "He is a player who we love as a person. He also knows us well and has given a lot to the team. I hope [his return] goes through."
Luis joined Chelsea for £15.8m (£24.6m) last summer.