For Cullen, 2018 was memorable as he saw off Gerwyn Price and Daryl Gurney before losing out narrowly in a thriller with Gary Anderson. This wasn't the case last year though as he was humiliated 10-0 against Ian White.
He will take on 'Diamond' again this time around and he wants to 'right the wrong' against the Stoke on Trent ace.
“I’m glad I’ve been given the chance to right the wrong of last year against Ian, obviously that game was a massive disappointment,” said world number 17 Cullen.
“After doing so well at the 2018 tournament, I had high hopes of going further in 2019 but it wasn’t to be. There's definitely unfinished business for me at the World Matchplay.
“Personally, I think I would've had a great chance of winning the title in 2018 had that winning double gone in against Gary. The way I was playing around that time, I really fancied my chances of going all the way.
“That was the first time when people saw what I can play like on TV, but for whatever reason I've not done it enough since. The European Championship in 2018 was even more disappointing, I threw away the semi-final and that was really tough to take."
“It took a while to mentally recover from that setback, but winning the European Tour event last year was big for me. On that day I knew nobody could beat me, that must be how Michael van Gerwen feels all the time!"
“In the mental side of the game, the elite players are levels above the rest, and that's the sort of mindset I need to have more often.”