Josh Rock is looking to progress to the last 16 of the World Championships for just the second time in his career tonight.
The Northern Irish native comes up against Callan Rydz in the final game of the day at Ally Pally.
The Englishman also beat Northern Irish opposition in the last round with a victory over Daryl Gurney.
Before that, Ryan Meikle faces Justin Hood in the opening match of the day.
World number 163 Charlie Manby takes on Ricky Evans and Nathan Aspinall plays Kevin Doets.
A host of former winners are through to the last-16 of the PDC World Darts Championship.
2018 champion Rob Cross will meet trophy holder Luke Littler after easing past Damon Heta 4-nil.
Gary Anderson claimed a 4-3 victory over Jermaine Wattimena, while Luke Humphries beat Gabriel Clemens 4-2.
