AZ hit once before before United could work a first effort on target. Murdock saved excellently, diving down to his right to deny Bouziane yet again, this time for a header.
At Old Trafford’s East Stand goal, Kuijsten caught Amir Ibragimov’s 32nd-minute header and then got down well to prevent James Scanlon’s long shot — skipping off the surface — from finding the bottom left corner.
Only Louis Jackson’s 30-yard effort threatened the AZ goal before the break, and good though it was, Kuijsten could save.