Lundgren, who sent Stallone into intensive care when they made "Rocky IV" together, said he was thrilled to work with the filmmaker again and be part of such a big, tough cast.
Stallone, Austin and Lundgren toughen up Comic-Con →
"Something like that is so severe. You can't really do anything. I sent him a handwritten note. I contributed to a charity for his kid," said Dolph Lundgren, one of a number of aging action stars featured in the film, which opens Aug. 17.
Stallone skips `Expendables 2' promotions →