The Welshman won the first nine frames in Manchester and scored three hundreds, including a break of 140 in the ninth game.
Three-ranked Allen won five straight frames to put himself in contention for a surprise win.
#snookers
The Welshman won the first nine frames in Manchester and scored three hundreds, including a break of 140 in the ninth game.
Three-ranked Allen won five straight frames to put himself in contention for a surprise win.
#snookers