Alarmed at the way goals have been conceded during their recent slump in form, worried Chelsea manager Carlo Ancelotti has earmarked Neven Subotic as a possible solution to his side's defensive ills and reportedly tested Dortmund with a £17.5million bid.
But it brought a withering response from the Bundesliga leaders, who made it clear the faltering Barclays Premier League champions were wasting their time.
Target: Neven Subotic is set to stay with Dortmund for now
Dortmund sporting director Michael Zorc hit out at their attempts to lure away the 22-year old Serbia centre-back, saying: 'Chelsea should save their money for a sensible move, one that has a chance of coming off.
'They will not get Subotic, because we are not selling. We are concentrating all our efforts on trying to win the Bundesliga, and it would not make sense to part with any of our best players.'
Arsenal have also been linked with the 6ft 4in central defender, who has already been capped 20 times by Serbia and is tipped to develop into an even more commanding figure than his countryman, Manchester United lynchpin Vidic.
Aware that United and Real Madrid figure just as prominently on his list of admirers, Chelsea attempted to steal a march on their rivals with an approach they hoped might tempt Dortmund.
But with Dortmund in sight of their first Bundesliga title for nearly a decade, after finishing the first half of the campaign with a 10-point lead over second-placed Mainz, they were given short shrift.
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