Ibrahimovic insisted earlier this month Rashford will eventually "take over everything".
And the 18-year-old striker has now revealed he is learning from Ibrahimovic, particularly on his hold-up play.
"He [Ibrahimovic] has probably helped me improve more than what he thinks," Rashford said in a Fifa 17 interview.
"Without even saying anything, just me watching him, his hold up play and how he dictates his game.
"There's a lot more to learn."