Two former world champions will battle for the £500,000 top prize.
How well do you remember the single table set-up?
By the end of the day’s action, the two finalists will be known.
It’s the 45th edition of the tournament at the Crucible Theatre.
A total of 35 frames needs to be won before a player lands this year’s title.
The seven-time world champion wasn’t impressed by the world number three’s display.
More than one-third of the total Crucible participants since 1977 have reached this stage of the competition.
The wait goes on for yet another year.
There are six former world champions left in the hunt for glory this year.