Chelsea are being heavily linked with a free transfer swoop for ex-Blues midfielder Tiago, who is set to leave Atletico Madrid this summer.
The Blues ended Jose Mourinho's first season back in charge at Stamford Bridge without a trophy, but the Chelsea boss will be given the opportunity to strengthen the squad this summer in a bid to reclaim the Premier League title - as well as attempt to progress in the Champions League.
Whilst the club have already been linked with big money swoops for the likes of Luke Shaw, Sami Khedira, Ezequiel Lavezzi and Diego Costa, it's a free agent that has been generating attention this week - and it's a familiar face to Blues fans - Tiago Mendes.
The 33-year-old was brought to Chelsea in 2004 as Jose Mourinho moved to sign his compatriot in a €15m deal from Benfica, and he went on to 47 appearances for the West London club, scoring four goals before moving on to Lyon after just one season at Stamford Bridge.
Since then, Tiago has gone on to play for Juventus and now Atletico Madrid too, featuring prominently for Diego Simeone's men as they clinched the La Liga title. Yet with his contract expiring this summer, it seems Mourinho is intent on bringing Tiago back to the club - to many people's confusion.
However, when you delve deeper, the move makes perfect sense. Chelsea are seeking a partner for Nemanja Matic in the centre of midfield, having seen Ramires, John Obi Mikel and Frank Lampard struggle to perform consistently in front of the back four.
With so many talented attacking players, landing an experienced holding midfielder who can play to a high standard whilst Dutch youngster Marco van Ginkel develops will be ideal for the club in the short and long-term. Additionally, a player who is already familiar with Mourinho's system and style of football will be a valuable addition - and on a free, Chelsea could do a whole lot worse than bring Tiago back to Chelsea.