Mount was back in the matchday squad for the 3-1 win over Aston Villa but remained an unused substitute at Old Trafford.
Although he is available, our no.7 is deemed not quite ready to play a full 90 minutes and Carrick has explained that he will use the lengthy pause in action, before we face Leeds United at home, in order to ensure an important player is 100 per cent.
"Starting would be too much, I think, at this point, [for Mason]," Carrick revealed at a press conference to preview Friday night's Premier League clash at Bournemouth.