Aspinall fought back in the second set, taking it 3-1 to level the match at 1-1. However, Littler regained his composure and took the next two sets 3-1 to go 3-1 up in the match.
Aspinall managed to win the fifth set 3-2 to reduce the deficit to 3-2, but Littler showed his class and closed out the match by winning the next two sets 3-1 to seal a 5-2 victory.
Littler will now face Stephen Bunting in the semi-finals, and he will be hoping to continue his impressive form and book his place in the final.
I’m just playing with absolute confidence and freedom. I’m just absolutely loving it up there.
Littler will face the winner of the quarter-final between Stephen Bunting and Peter Wright in the semi-final on Friday night at Alexandra Palace.