Mou wants reunion with Real Madrid star at Stamford Bridge.
Chelsea have joined London rivals Arsenal in the chase for Gonzalo Higuain, according to Italian source TuttoMercato.
Serie A champions Juventus are also interested in the Real Madrid striker, who has made no secret of his desire to leave the Santiago Bernabeu this summer.
The Blues have reportedly turned to the 26-year-old Argentine after their pursuit of top target Edinson Cavani faltered, with the Napoli hit-man ironically set for Real.
Only Cristiano Ronaldo and Lionel Messi have scored more La Liga goals than Higuain since the forward arrived in Spain from River Plate in 2006.
The Argentina international netted 16 goals in just 19 La Liga starts this term but was most often utilised from the bench by Los Blancos head-coach Jose Mourinho.
Even so, the Portuguese is thought to be keen to lure the player to Stamford Bridge, in news that will come as a major blow to both the Gunners and Juve.
Any club interested in Higuain will have to pay up, however, after Real technical director Zinedine Zidane slapped a €35m price tag on the striker.