Barcelona's potential sale of fringe defender Marc Bartra has become all the more interesting after it emerged the Blaugrana may look to trade their man to Valencia for Shkodran Mustafi.
The Primera Division pair could sanction a double deal, according to Spanish newspaper Sport, with "contact already established" between the clubs as Los Che look to tempt Bartra to the Mestalla.
However, it's understood Valencia are more keen to sign Bartra than Barcelona are to sign Mustafi, and it's as yet unknown how desperate manager Luis Enrique is to lure the Germany international to Catalonia.
Bartra has once again been a minor character at the Camp Nou this season, starting in just 10 of his 24 appearances across all competitions, while Mustafi has been a thriving force for Valencia.
Despite his fringe status, however, Bartra remains committed to aiding Barcelona, and Enrique spoke highly of the centre-back in April, per Ivan San Antonio of Sport:
The game in A Coruna served to show that he is ready, to see that he can come in from the shadows and play really well. It's the attitude you have to have to be a professional. It's easy to say it, but difficult to do. Whenever I have spoke with him he has repeated: 'I am ready, when you need me boss, I'll be there.' It was a nice moment for him and he has to enjoy it and continue to be ready when the chances arrive.
That being said, Bartra is 25 years of age, and it's at this point in his career when he must question whether a breakthrough will ever come about with Barca, his club of going on 14 years.
Bleacher Report's Rik Sharma attested further to Bartra's lack of prominence back in April:
Like many in the Valencia squad, Mustafi's performances this season haven't quite been up to the standards of the 2014-15 campaign, but the 2014 FIFA World Cup winner has impressed in his exploits nonetheless.
According to Sport, Valencia sporting director Jesus Garcia Pitarch has already spoken to Bartra's representatives, but it's said Mustafi is "not a priority," with German and English clubs also interested in his services.
What may also appeal to Barcelona in their pursuit of the 24-year-old is his ability to feature at right-back as well as in central defence, offering competition to the likes of Javier Mascherano, Jeremy Mathieu and Thomas Vermaelen.
Depending on the mechanics of a deal, Barca could ship out some deadwood in the form of Bartra while recruiting a handy asset of their own in return this summer.