Watch this event on Eurosport PlayerMark Williams became the oldest player to make a 147 break in tournament play after achieving the feat during his English Open quarter-final against Neil Robertson.
The maximum break came in the fourth frame after the Welshman had barely made an impact on the match up until that point.
However, despite being 3-0 down, Williams approached the baize to kick off the scoring with a fine long red into the corner pocket.
English Open
Player of the season Allen thriving thanks to weight-loss success says O'Sullivan
Knowing he needed a response to Robertson’s electric start, Williams found his groove, confidently downing reds and blacks in style - collecting 15 reds, 15 blacks and then the colours to seal a 147.
“He’d done nothing for three frames!” beamed Dave Hendon on commentary. “He didn’t get a look in, Neil Robertson was playing so well”
“But Mark Williams steps in and makes a 147.
“Absolutely brilliant. What a legend!”
"I was going for it," said Williams after the match. "I was 3-0 down and I needed to make something happen other wise it would have been 5-0.
"To be fair, it was pretty comfortable, I didn't think I would miss one shot.
"Black was a little bit tricky at the end but that was about it".
"It was absolutely perfect the whole way through," said Jimmy White in the Eurosport studio. "Hit some fantastic shots on the black".
"It only wins you a frame but it also wins you five grand" said Neal Foulds. "It also amounts to a lot of prestige.
"The crowd loves that and it means a lot to Mark even though he's still behind in the match".
- -
Stream the English Open and more top snooker action live on Eurosport and discovery+
English Open
Out-of-form Trump looking forward to Christmas break after latest defeat
English Open
'You frighten the life out of players,' O’Sullivan tells Brecel