Atlético de Madrid have a three-man shortlist to strengthen the heart of their defence, one of whom is Fiorentina's Montenegrin defender Stefan Savic. Monaco's Tunisia international Aymen Abdennour and Stuttgart's German stopper Antonio Rüdiger are the other two targets.

Where Savic is concerned, an interesting option has presented itself. While the 'Rojiblancos' higher-ups were putting out the feelers, they found out that the Florence outfit was interested in Mario Suárez, who is surplus to requirements at the Calderón.

Everything would seem to fit perfectly for a swap deal, although obviously both players will have a say. While Savic's opinion is common knowledge - he would love to make the move to Madrid -, things are not quite as clear-cut when it comes to Mario, even though the Spanish midfielder has been heavily linked with a switch to Serie A over recent months.

Atlético are willing to bend over backwards to make a deal happen, despite Mario having two years left on his contract, in order to secure Savic on the cheap. A €15 million fee had been quoted for the Montenegro international.

Next week looks set to be another crucial one for Diego Simeone's side. With Luciano Vietto and Yannick Ferreira Carrasco already in the fold and Jackson Martínez just an official announcement away, the club's next move should be to bring in the centre-back they have been looking for to compete with Diego Godín and José Giménez.