League One rumours: £6m Sunderland defender deal | Ex-Leeds man set for move | Updates on Portsmouth, Coventry

And reports today suggest that one of the Black Cats' want-away defenders could be set for a move to Turkey.

LIVE: Transfer latest from the Stadium of Light - could it be two out, one in?

Elsewhere, there are updates from a host of other clubs in League One as transfer activity hots up.

Here's the rumours doing the rounds today:

Trabzonspor have enquired about a deal for Sunderland defender Lamine Kone, according to reports from Turkey. It is claim that the Black Cats have slapped a £6m price tag on the 29-year-old, who is keen to seal a move away from Wearside and is interesting the Super Lig side. Trabzonspor were also linked with a swoop for Papy Djilobodji earlier this summer (61Saat)

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Doncaster Rovers are set to offer a deal to former Leeds Untied midfielder Romario Vieira after he impressed on trial. Fellow triallist Paul Taylor is also earmarked for talks with the club (Doncaster Free Press)

Kenny Jackett is remaining calm as Portsmouth target new additions, and has admitted that he may turn to the loan market (The News, Portsmouth)

But Jackett is losing hope of landing Newcastle United midfielder Sean Longstaff, who had been heavily linked with Pompey (The News, Portsmouth)

Oxford United defender Ricardinho is set for a move to FC Twente, having also been the subject of interest from Birmingham City, Wigan Athletic and Rotherham United this summer (HITC Sport)

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Mark Robins has confessed that he is unsure how close Coventry City are to landing some new signings (Coventry Telegraph)

Charlton Athletic defender Patrick Bauer is still interesting Blackburn - but Bolton chairman Ken Anderson has confirmed that his club did not make a bid for the German (Various)