Griezmann was furious after their Champions League thrashing by Juventus and let rip, with some claiming his words were for Koeman.
"We lacked everything: wanting to run, wanting to work, wanting to attack ... The image was very ugly," said Griezmann.
But a Barca source, speaking to El Pais, insists the blast was for Griezmann's teammates and not his coach.
"What Antoine said is not aimed at the coach but at the locker room," said the insider.