It’s standard procedure to offer youth stars who have enjoyed good seasons the chance to test themselves in first-team training.
If they impress at Carrington, managers will make a call on whether to offer them senior minutes before the season draws to a close.
This has been the case for many of United’s 249 academy graduates, and Lacey is currently undergoing that assessment, with just six Premier League games remaining.
Alejandro Garnacho and Kobbie Mainoo both received their debuts at the age of 17 in the last few years and are now crucial starters for Ten Hag.
