An unnamed source told the entertainment magazine that the 46-year-old Oscar winner “knew he needed help and was vocal about it.”
Garner, who shares three children with the “Gone Girl” star, was seen arriving at his home Wednesday and then driving him to a treatment center in Malibu, People notes.
There were signs earlier this week that Affleck was slipping. He was photographed Monday appearing to field a delivery of alcohol at home.
The actor reportedly broke up with girlfriend Lindsay Shookus recently and had been seen around town with Playboy model Shauna Sexton. A source told Entertainment Tonight that Shookus had been a stabilizing influence in his effort to remain sober.
Affleck last pulled a stint in rehab in 2017 and also sought treatment in 2001.
An Affleck rep did not immediately respond to HuffPost’s request for comment.