Amid all the issues and the problems still facing Sir Jim Ratcliffe and co ahead of Manchester United’s first summer under Ineos control, this is the one likely to attract the most attention. And, perhaps, the most pressure. A potential ‘superstar’ he may be. But there is a very good reason why one of the most naturally talented Manchester United graduates of the last decade is spending the season out on loan away from Old Trafford. TheRed Devils incurred quite the backlash when it emerged last summer, via The Athletic, that there were plans to re-integrate Mason Greenwood into Erik ten Hag’s …