The 19-year-old has started games against West Ham United, Swansea City and Stoke City this season whilst coming on to grab goals against Leicester and FC Basel.
Martial, on the other hand, has started against Leicester and FC Basel alongside claiming goals from the bench against West Ham and Swansea.
And Rashford, when asked about the friendly rivalry for a starting spot between the two, made it clear that it would only spur the pair on to improve further this season.
“It’s difficult when you’re in and out of the team, but we have to find the positives out of it and I think we have both done that,” he said.
“I think the competition is always positive competition because we’re improving each other every day when we’re in training and in the games we’re pushing each other more and more.
“It’s a bit of a headache for the manager but it is a good headache to have.”
Think about it like this: if Lionel Messi didn’t exist, would Cristiano Ronaldo have scored as many goals, claimed as many trophies, and won as many major honours? Obviously not. This works both ways, of course.
The same concept applies to Rashford and Martial. One sets the bar for the other and the process that follows is one of cold, determined progression on a dialectical level – a deep-rooted desire to burn past opponents and write more headlines than the other. If one player skins a right-back, so does the other; if one scores a vital goal, the other works just a bit harder to do the same.
Jose Mourinho has a selection problem on his hands this season, but one he won’t mind in the slightest.