How can anyone possibly say that about regular starters? It is more likely they will play around 50 games than them not doing so. This season wasn’t their first seasons as professionals. It is an anomaly that they have missed months of the season. They have played around 50 games many times before.Maybe less but how often are our players injured or need to be rested. The number of games where Pogba, Fernandes and Rashford are all fit will be more rare than you think. Plus the games where they need a rest.
There is no chance they will play 50 games or there about in a season.