Ibrahimovic will be officially presented as an AC Milan player on January 3, the Italian club confirmed on Monday.
Ibrahimovic returns to the side on a six-month deal, promising to help rescue the struggling Serie A outfit's season.
The 38-year-old will undergo his medical on Thursday, January 2 and will hold his first press conference the following day.
"Milan announces that Zlatan Ibrahimovic's press conference is scheduled for Friday, January 3rd at Casa Milan at 10 am (CET)," they said in a statement.