United hold on to see off Aston Villa by beating them 1-0 to reach the FA Cup fourth round.
They took the lead in the eighth minute when McTominay headed the ball into the net but after that, nithing to write home about United as the best chances fell to Villa,
Villa were unlucky in the first half when Watkins smashed an effort off the bar.
In the second, they hit the back of the net twice, with both being ruled out for offsides.