We take a closer look at the performances so far of the four Betfred World Matchplay semi-finalists ahead of tonight's action, which begins at 2000 BST.
The opening game of the night will see the master take on a former apprentice as 2018 champion Gary Anderson plays 2019 runner-up Michael Smith.
By his own admission, Anderson has not been at his sparkling best in his first three matches, in fact the two-time World Champion said he was '97%' away from his best.
Despite this, he has still made it through to the final four with relative ease, taking early leads in games against Justin Pipe, James Wade and Simon Whitlock, with his opponents unable to apply significant pressure to force a close finish.
However, The Flying Scotsman is likely to need to be at full speed if he is to get the better of his protégé Smith, who has navigated a rockier journey to the semi-finals.
Desperately seeking his first televised ranking title, Smith blew away Jonny Clayton in round one, before coming through intense battles with Mensur Suljovic and Krzysztof Ratajski.
Statistically, Smith has outperformed Anderson, partly through necessity due to the performances of his opponents thus far.
Smith has shown he is up for the fight in this tournament, while Anderson has kept his opponents at bay, though that is likely to change tonight.
Title sponsor Betfred can't call it, with both players rated a 10/11 shot to make the final.
Similarly to Anderson v Smith, our second semi-final will also see experience go up against youth as three-time Lakeside Champion Glen Durrant faces two-time World Youth Champion Dimitri Van den Bergh.
Durrant began the tournament with a 106.93 average in his 10-3 rout of Jeffrey de Zwaan, before defeating World Champion Peter Wright 11-9, one of his biggest PDC victories to date.
The Teessider looked unusually rattled in his quarter-final win over Vincent van der Voort, claiming after the match that 'the better player lost'.
Durrant will have to wipe any negativity from his psyche if he is to go one step further than his incredible run in 2019 which ended in a painful semi-final loss to Smith.
Van den Bergh has followed in Durrant's footsteps by reaching the final four in his debut World Matchplay campaign.
The 26-year-old Belgian declared he was 'not finished yet' after Friday's impressive victory over Adrian Lewis, having overcome Nathan Aspinall and Joe Cullen in the opening two rounds.
Tonight will be perhaps the biggest match of Van den Bergh's career to date, and as such he will likely need to produce his best display over a long-distance match to reach the final.
Title sponsor Betfred make Durrant a slight favourite in this one at 8/15, though Van den Bergh is very much considered a live contender at 6/4.
The semi-finals of the 2020 Betfred World Matchplay will start at 2000 BST, broadcast live on Sky Sports in the UK, through the PDC's worldwide broadcast partners including DAZN and RTL7, and on PDCTV for Rest of the World Subscribers.