Simpson knows Man Utd future depends on Blackburn form
"He (Sir Alex) said 'don't just do your training, do your extra bits you do at United, and don't be afraid to ask people at Blackburn to do the extra bits because that will improve you'."
Having embarked on a host of loan deals before, Simpson is well aware that his activities at Blackburn will be closely monitored by Sir Alex and his coaching staff.
"He also said to me 'you'd better play well because I'll be watching you,' so he'll be keeping a close eye on me," Simpson revealed. "But I want to prove to myself that I can challenge at this level, so it's a big season for me."