The two forwards will face each other for the first time since swapping clubs during the pre-season transfer window, with the Belgian finding himself at the top of the league’s goalscorer table with a tally of four Premier League goals.
Rooney, however, has failed to add to the two goals he scored in the first two matches of the season and finds himself some way below the former Toffees hitman on the aforementioned table.
The former England international left Old Trafford as the Red Devils’ record goalscorer with a total of 253 goals in all competitions, a feat Mourinho believes Lukaku will not be able to match.
“I think Wayne spent probably 10 years of his career in a different Premier League than you have now,” he told reporters.
“A Premier League where it was easier to score goals not just because of the difference between the top teams and others but also because of the profile and the tactical interpretation of the competition.
“I think this Premier League is much more defensive-minded and much more difficult,” he added, before switching topics to the current state of the season.
“I am very pleased with the contribution but I want more goals.
“The way the team plays, they have to. When a team doesn’t create a lot, when a team doesn’t have the ball, when a team is just reactive, it is more difficult for these players but when the team is in control and makes decisions on the direction of a game, when the team is so offensive, when the team puts so many people in attacking areas, I think they have to score goals.”