Angel Di Maria saw red as struggling Juventus fell to a 1-0 defeat at Monza in Serie A, with substitute Christian Gytkjaer scoring a 74th-minute winner.

With head coach Massimiliano Allegri not on the bench through suspension, the Bianconeri put in a poor display as Di Maria was sent off for an elbow on Armando Izzo before half-time.

The visitors' sloppy performance was punished 16 minutes from time as Gytkjaer slammed home from a Patrick Ciurria’s cross.

A first league defeat of the season for Allegri’s men means they lose more ground on Serie A’s early pace-setters, adding to the scrutiny of the coach.