Brighton & Hove Albion have reportedly had a second bid for Paddy McNair rejected by Sunderland.
The Black Cats are said to have rebuffed the Premier League side's initial offer of £2m and, according to Sky Sports News, have now turned down an improved bid of £3.5m.
The report states that the Seagulls face competition for the Northern Irishman's services, with an unnamed London club said to have tabled a £3.75m offer for the player.
Sunderland are reportedly unwilling to part with McNair for less than £4m.
Meanwhile, a number of Championship clubs are rumoured to be monitoring the 23-year-old.