The defender arrived back from the Africa Cup of Nations shortly after Carrick's appointment, but has, by now, had plenty of time to get to know his new head coach – and he's been impressed so far.
One notable thing for Nous is how apparent Carrick's history with the club is, having made 464 appearances for the Reds as a player.
"He has a big history at the club," Mazraoui told United Review, our official matchday programme, ahead of the Crystal Palace game. "He knows the club really, really well.
"You see and you feel that in this type of coaching and the words he's saying to us in his meetings.