It sounds like from Mourinho's post match interview that was the case. But a 80% Martial is still a better left winger than a 100% Rashford imo. Martial's problems seems to have stemmed from a lack of game time and Mourinho dealt with it by giving him even less game time. Tbf, Martial's form dropped at the start of the season and he was rightfully dropped, but in the last month or so Martial started to perform well again and he was dropped for the subsequent games regardless of his performances. Mourinho is surely not doing this to spite Martial or anything, but imo he seems to be treating certain players differently. Shaw for instance is not even making the bench currently and this is after his solid performance against Wigan. Darmian, on the other hand, a few months back consistently struggled against quick and strong wingers, but he kept his place as a LB throughout those period of games. This clearly shows that Mourinho is judging players on the things they do off the field (how they train, etc.) But the question that is then raised is should Mourinho drop better players based on them training worse, regardless of whether they perform better than others (most would argue that Martial is better than Rashford as a LW and Shaw a better LB than Darmian.)