Gabriel Rosado -- the real life pro boxer who fought Michael B. Jordan in "Creed" -- says he's ready to return the ring ... and he's got his sights set on Julio Cesar Chavez Jr.
32-year-old Rosado is a middleweight fighter who's squared up against the likes of Gennady Golovkin, Jermell Charlo and Peter "Kid Chocolate" Quillin.
Rosado hasn't fought since Oct. 2017 -- but tells TMZ Sports he's "in talks" to make his comeback against Chavez Jr., the former WBC middleweight champ.
"We might be out here in the Staples Center," Rosado says.