The name of Fernando Torres was chanted as Mario Mandzukic was unveiled by Atletico Madrid.
Atletico Madrid supporters chanted for Fernando Torres even at the unveiling of their newest striker.
The La Liga champions have been linked this week with bringing the Chelsea forward back home, and the club have been handed another nod to try and push for a deal.
At the unveiling of new signing Mario Mandzukic, a crowd of supporters made their feelings clear.
Spanish newspaper AS report: "Many of the 6,000 Atletico fans who gathered at the Calderon to the coming-of Croatian striker broke chanting the name of Chelsea striker, again to reinforce the attack.
"The songs were in the long, hot wait until Mandzukic began to be presented and not when the new player was on the pitch. It was a protest gesture to show affection for Torres and not an ugly or rudeness towards the new signing for Atletico."
Atletico's president Enrique Cerezo said a day ago he was open to a move for Torres, but negotiations have not yet begun.
The striker has been at Chelsea since 2011 and failed to kick on at the Blues, and the arrival of strker Diego Costa from Atletico pushes him down the pecking order. A return to his former club would in theory suit all parties.
Firstly however the two clubs must agree financially, and Torres being allowed to leave may depend wholly on Chelsea's plan for Romelu Lukaku.