Wolverhampton Wanderers have announced that they have mutually agreed to end the contract of Jonny.
At the back end of 2023, it was revealed that the defender had been involved in a training ground incident, it widely reported to have involved Jonny swinging an elbow at one of the club's younger players.
That resulted in the Spain international being banished from the first-team squad, Wolves later confirming that he would not be considered for a return until after the end of the January transfer window should he remain at Molineux.
However, the preference for all concerned was to find a new club for a player that had not made a single senior appearance since a brief substitute outing against Manchester City on September 30.
PAOK have been heavily linked with the 29-year-old and the expectation is that he will complete a free transfer to the Greek outfit in due course.
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On Friday lunchtime, Wolves confirmed that they had agreed to part ways with Jonny in order for the experienced full-back to secure a transfer elsewhere.
Sporting director Matt Hobbs told the club's official website: "Jonny hasn't played a lot of football over the last couple of years, so he wants to go and play and we're happy to give him that chance. He's been a great servant to us, so we tried to make this happen for him as quickly as possible.
"Doc (Matt Doherty) is the last one left from the starting Europa League group, and he came back, so Jonny leaving is another one gone from that era, from a group of players that will always be welcomed back to the club, for what they did for the club and Jonny will be held in the same regard.
"In the modern era, he was part of the most successful team we've had, so the only way Jonny should be remembered is for being an important part of it.
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"Every team needs players where the manager knows exactly what he's going to get. He raised one child here and had another here and loved the city. When you come to putting a team together, that's really important."
Jonny, who cost in the region of £15m when he joined from Celta Vigo in 2019 on the back of a successful loan switch, leaves Wolves having made 134 appearances in all competitions.
His departure will free up space on Wolves' wage bill as they contemplate making at least one new addition before close of business on Thursday.
However, on the assumption that Wolves have decided to pay up a chunk of Jonny's lucrative contract which still had 18 months left to run, that will have an immediate impact on their FFP position.
Head coach Gary O'Neil revealed on Thursday that Wolves were unable to afford any of their primary targets to strengthen the attack, forcing him and the club's recruitment team to reassess their options.