A ruthless goal blitz in the opening 35 minutes saw a trio of goals from Scott McTominay, a Ben Mee own goal and Cristiano Ronaldo putting the Reds in a commanding position against Sean Dyche’s visitors.
Burnley soon pulled one back through Aaron Lennon but United were comfortable winners.
Rangnick made six changes from the XI who had under-performed in the draw with Newcastle at St James’ Park earlier in the week while Burnley were depleted due to four absentees with COVID-19 positive tests and further injuries in the squad. And it proved a happy send-off to the year for the Reds.