Cardiff manager Russell Slade has said the club are looking at whether Spanish defender Juan Cala broke club discipline rules on social media.
Cala revealed on Twitter this week that he could leave the SkyBet Championship club after being sent to train with the club's academy, although Slade said ahead of Saturday's trip to Watford that the centre-back "is doing his rehab work there".
I just want the situation to be sorted out and to play here on in another club ASAP!! Thank you for support
"I just want the situation to be sorted out and to play here on (sic) in another club ASAP!! Thank you for support," Cala wrote on Twitter.
The 24-year-old centre-back, who was signed by former Cardiff manager Ole Gunnar Solskjaer from Sevilla in January, has made only one Championship appearance this season having slipped down the pecking order below Bruno Ecuele Manga, Ben Turner, Sean Morrison and Danny Gabbidon.
"That is an internal viewpoint, whether he used it (social media) in an appropriate manner and whether he stepped over the mark. I have spoken to him," Slade said at his press conference ahead of the Watford game.
"We spoke to his agent two to three weeks ago about his situation and it was agreed we would look to move Juan on in the January transfer window.
"That's for Juan and his people to work on, probably in Spain, and that is what they are looking at.
West Ham midfielder Ravel Morrison is poised to complete a season-long loan switch to Cardiff tonight, according to the Daily Mail.
The deal will include an option for Morrison to return from Wales in January, with a court case looming after he allegedly threatened to kill his former girlfriend.
The 21 year-old will go on trial in January after allegedly threatening to throw acid over former lover, Parveen Mansoor, and have her killed.
He is also accused of trying to blow up her house and assaulting the 19 year-old and her mother in the early hours of July 27th 2014.
Morrison spent last season on loan at QPR, helping them win promotion from the Premier League, but has only featured twice for West Ham this season.
ITV News Correspondent Rupert Evelyn says Cardiff practically devoid of anyone not connected with the Nato summit.
Cardiff like a ghost town this morning. A city for world leaders, police, protestors and journos only today?
Police have been patrolling Cardiff Bay as part of the massive security operation surrounding the Nato summit in nearby Newport.
A leading security consultant said the Nato summit in Newport will be one of the "biggest security operations" in the UK.Read the full story ›
ITV News Wales and West of England Correspondent Rupert Evelyn reports:
The 18-year-old man from the Grangetown area of Cardiff who was arrested earlier today under Section 5 of the Terrorism Act has been released on bail, police said.
An 18-year-old man from Grangetown in Cardiff has been arrested on suspicion of terrorism offences.
South Wales Police say he has been arrested under the Section 5, Terrorism Act 2006 for assisting in the preparation of an act of terrorism.
Police said that today's arrest was not linked to any immediate threat to public safety.
Four men have been arrested in Cardiff by detectives investigating slavery and kidnap allegations, Gwent Police said.
An operation involving three police forces saw warrants executed at five addresses in Bristol and Cardiff this morning. Four men from the Rumney area of the Welsh capital were arrested.
Police working on Operation Imperial are probing alleged offences of slavery, forced labour, false imprisonment, kidnap and assault.
Lead officer Detective Superintendent Paul Griffiths said: "The alleged offences we are investigating are extremely serious and we would urge anyone with any information which could assist to contact the Imperial team directly."
South Wales Police has confirmed that a 22-year-old man has been arrested on suspicion of murder after the death of 45-year-old Darren Thomas, an inmate at Cardiff Prison.