The goalkeeper appeared to be well in control when a seemingly innocuous cross was floated into the box. The ball may have taken a slight deflection but the 22-year-old had no excuses for fumbling the ball over the line.
Yet Bettinelli's mistake, which made the score 1-1 before Sunderland went on to win 3-1, wasn't the only howler of the evening.
Fulham will be looking to get back on track in the Championship after seeing any hopes of an FA Cup run come to end and will do so against Birmingham this weekend.
Hoping to pull the fans in for the match at Craven Cottage tickets were advertised for the game, however the Fulham faithful might have been left somewhat confused by the electronic hoardings.
The match was accidentally billed for 'Sat 7th Jan, 3pm' when in fact the match is taking place on Saturday 7 February.
Perhaps the Cottagers were trying to turn back time following Bettinelli's mishap.Reuse content