Fulham boss Mark Hughes has been impressed by Manchester United striker Javier Hernandez this season.
United legend Hughes rates Chicharito as "fantastic".
He believes the little Mexican will give his defence plenty to think about tomorrow.
"Wayne Rooney is the first-choice striker for Manchester United, so when he is not playing, it takes something away from the team," said Hughes.
"However, I have been really impressed with Hernandez, I think he is a fantastic striker.
"You look at his movement and his understanding of where the ball is going to drop in the box, his energy and ability to recognise which run to make - so although Wayne is not going to be involved, United have a young striker there who could be one of the best."
