According to White Sox Dave, they offered him a contract. He had an opportunity at guaranteed money to come up now. There is no guarantee that Eloy would mash in the majors, so unless it were peanuts orEloy is MVP out the gate he'd likely be well compensated.
The Cubs did it with their ROY-MVP and he seems happy. If the Sox are winning and close to the World Series in three years, Rodon and Eloy are probably gonna be signing fat contracts from the Sox.