Mazraoui filled in admirably at left-back against Crystal Palace, following the early substitution of the ill Luke Shaw, while Zirkzee displayed some quality touches and was unlucky to see two shots blocked late on, as we sought a third goal to take the game beyond the reach of the Eagles.
With four Reds ruled out of Wednesday's trip to Newcastle, and Shaw and Harry Maguire doubts, Carrick may once again need to call on the wider group.
That's what he told Mark Sullivan, as part of his pre-match interview, which you can watch, and read, in full below.