Frame 16 - O'Sullivan & Higgins

I wondered at the time what he was doing - he hit it far too hard and for an experienced plater like him?  But he did it again in a later frame so he was obviously on the boil and not just focussing well.
I thought poor Mark Williams did the same with the black on the cush he stretched for and missed in frame 32.  I couldn;t believe how lackadaisical he was with i at such a crucial stage of the match.
The pressure is enormous I suppose.