Bruno Fernandes, Alejandro Garnacho and a Victor Kristiansen own goal helped ensure the win, as Ruud van Nistelrooy signed off in perfect style following his four-game interim period.
De Ligt, who partnered Lisandro Martinez brilliantly for large parts of the encounter, was proud of our display after we posted a fifth Premier League shutout of the season.
With an international break now providing a platform for Ruben Amorim to build with, the Netherlands international spoke glowingly via MUTV following the full-time whistle in M16.
"Yeah, I think so. What you're say, three points is really important, three goals scored, clean sheet," began the 25-year-old.