Jelavic struck twice to dump QPR out of the FA Cup on Saturday.
"With the World Cup coming up, he will want to be playing as much as possible, and I would certainly like to see him in our side," said QPR's former Manchester City defender Onuoha. "Top quality players like him, with the right attitude, are the type you want to play with. He was sharp, and from a defender's perspective, he is clever with his movement.
"He is a top player, and I enjoy the challenge against players like him who have done it at the very highest level. His finishing is very good, and he has a real desire to score goals."