Chelsea are reportedly looking for a figure in the region of £29m for Spanish defender Marcos Alonso.
The 28-year-old has only made seven Premier League appearances for the Blues this season and has not even made the squad for any of their last six league fixtures.
There have been suggestions that Atletico are keen on a loan deal, but according to Corriere dello Sport, Chelsea want a permanent sale and have placed a £29m valuation on the Spaniard.
Alonso made 120 appearances for Chelsea during his first three seasons with the club as he developed into a key player following a switch from Fiorentina.
The former Real Madrid youngster has fallen out of favour under Blues boss Frank Lampard, though, and is widely being tipped to leave his English club when the winter transfer window opens for business.body check tags ::