Manchester United were seconds from victory when Harry Maguire earned Leicester a late, late point.
The centre half slotted home deep into injury time to send the Foxes fans home happy for Christmas.
United midfielder Juan Mata appeared to have United back to winning ways following their Carabao Cup defeat by Bristol City in midweek.
He scored twice following Jamie Vardy’s opener in the first half.
Leicester’s task had appeared almost impossible when Daniel Amartey was sent off following two booking’s in five second-half minutes.
But Claude Puel was left smiling when Maguire struck.
Here, we rate the players from both sides...