The Blue Birds want young centre-back Caulker.
Tottenham Hotspur starlet Steven Caulker is the subject of an £8m bid from Premier League new boys Cardiff City as the Welsh side look to improve their squad, reports the Daily Mail.
Spurs value the 21-year-old at nearer £12m but the Blue Birds are confident they can land their man with a cash offer plus add-ons.
Caulker is concerned that the centre-back will not get enough playing time at White Hart Lane this season, with Michael Dawson, Jan Vertonghen and Younes Kaboul all already at the club and manager Andre Villas-Boas also showing interest in Vlad Chiriches of Steau Bucharest.
The young defender is highly rated in north London, but Tottenham could not offer the Englishman the same amount of playing time that Cardiff could.
Caulker has made it into the Spurs first team after doing the rounds at lower league clubs on-loan for the previous three seasons before the 2012/13 campaign.
Successful spells at Yeovil Town, Bristol City and then Swansea City – upon the Welsh side’s promotion to the top tier in 2011 – has seen the England international become an extremely competent centre-back.
To date Caulker has earned just one cap for the English national team, but playing every week at Cardiff would give the defender more of a chance of getting noticed by Three Lions manager Roy Hodgson in a World Cup year, than sitting on the bench at Spurs.
However, whether Tottenham would want to let such a promising young talent leave permanently is unknown.