Yes it's one of those; you can't be pleased with an injury but getting the opportunity to start at least one of Rashford and Martial is a huge positive. Hope they take it with both hands.
I'm not usually someone to be glad of an injury, but this could be an opportunity for Martial, in particular, to put in a MOTM performance.
If I were Martial, I'd tell Jose that I want to play and I will put in a MOTM performance. Jose simply will not be able to resist. He loves to see players wanting to play every single second of every match, running through brick walls, putting in maximum effort. Someone needs to tell Martial this.
In actuality, Martial is a quiet guy, who has a demeanour about him, which is akin to someone who has given up and is sulking...even though this may not be the case.
Moreover, I don't think he has the verbal ability to give the manager confidence, to put him as the main striker, up top.
Notice that Lukaku and before him Ibra, were both very vocal and confident in their abilities. At Chelsea, Costa and Drogba were not quiet either. Martial just does not fit the type of character that Jose wants.
The man has a lot of natural skill, but his mild mannered personality seems to be putting him out of favour with Jose, which is frustrating for us fans to see.