Atletico Madrid are looking to thwart Chelsea's interest in Antoine Griezmann and Koke by negotiating new contracts with £100m buyout clauses for the pair, according to reports.
Blues manager Jose Mourinho is said to have singled out the duo as two key men that he wants to strengthen his Premier League-winning squad this summer.
According to The Express, however, Diego Simeone is leading the way in getting the talismanic pair onto lucrative new deals at the Vicente Calderon with the raised clauses.
Griezmann and Koke helped Los Colchoneros to the La Liga title in 2014 as well as the final of the Champions League in the same season.
