The former Valencia player, who joined Barcelona in 2014, still has a season left on his contract, but the club would probably allow him to move on a free transfer to open up a further place in their first team squad, reports Xinhua news agency.
"FC Barcelona has granted permission for defender Jeremy Mathieu to train on a trial basis during his holidays with Sporting Club de Portugal... Once this period is over, the two clubs and the Frenchman will make a decision on the player's future," the club said on Saturday.
Mathieu has made over 90 appearances for Barcelona in central defence and at left back, but has never been first choice, playing either as a substitute or when Gerard Pique or Javier Mascherano have been injured.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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