United's youngsters advanced to the semi-finals of the Milk Cup with a resounding victory over Cherry Orchard on Wednesday evening.
Paul McGuinness' side, who won their two qualifying games 4-0, stormed to a 5-1 win over the Dublin outfit.
Oliver Norwood put the Reds ahead early on with a tidy lob, and further goals from Evandro Brandao (2), Josh King and Jack Dean sealed an emphatic passage for United's youngsters.
The Reds will now meet Watford in the semi-finals, after the Hornets' comfortable 4-0 win over Drogheda United.
In Wednesday's other quarter-finals, South Coast Bayern stunned holders Fluminense with a 4-1 win, while Hearts overcame County Londonderry in a penalty shootout.