Michael van Gerwen will meet Adrian Lewis in the last 16 at the Grand Slam of Darts after both players were victorious on the final night of round-robin action in Wolverhampton.
Dutchman Van Gerwen produced a superb comeback to beat Kim Huybrechts 5-4 and finish at the summit of Group D - condemning the runner-up to face his brother, Ronny, in the second round.
'Mighty Mike' looked in serious trouble when he trailed 4-1, only for the Belgian to repeatedly fail in his attempts to get over the finishing line.
He missed three shots for the match and was made to pay as last year's runner-up rallied in impressive fashion, sealing victory with a 135 checkout that delighted the crowd.
It means the Huybrechts siblings - who qualified for the tournament after finishing second in the World Cup - will now go toe-to-toe, Ronny having topped Group C thanks to a 5-3 win over Richie George in the opening match.
"I'm facing my worst opponent possible in the tournament, but I'm still in and that still gives me a chance to win it," said Kim after his narrow defeat. "I love my brother to bits, I would do anything for him. But the moment I step on this stage he is my biggest enemy. It doesn't matter how, I want to win."
Van Gerwen, meanwhile, will take on Lewis - a 5-3 winner over Christian Kist - in a true heavyweight clash for a place in the quarter-finals.
The battle of the 2012 world champions in their respective organisations went the way of the man from the PDC, though Lewis made heavy weather of it having won the first four legs on the spin.
James Wade ended Group B with a perfect record after a 5-2 triumph over Wesley Harms, overcoming a wobbly start with a 127 finish in the third leg before producing a 13-darter in the next.
'The Machine' wasted three chances to win the match in the sixth and then did the same in the following leg, only to get a fourth opportunity when Harms couldn't hit bullseye to stay alive.
Next up for Wade will be Paul Nicholson, who saw off Stuart Kellett by a 5-2 margin in what was a straight shoot-out for a place in the knockout stages.
There seemed little between the pair with the score at 3-2 before 'The Asset' reeled off three successive legs, clinching his place in the next round when he took out 81 with double six.
"I haven't felt my best this week, but I've grounded it out," Nicholson - who had written the name of his grandfather on his thumb as inspiration, said. "As far as I'm concerned there's no better place to do it than Wolverhampton. This is an amazing tournament - I love it."
Nicholson was second in Group A to Phil Taylor, 'The Power' having made it three wins from three with a 5-0 thrashing of Kevin Painter that saw his opponent not even get a shot at a double.
"I'm happy to get through, it was a tough group," said Taylor. "It's such a short format that it's a big leveller."
Gary Anderson stands in Taylor's way of a place in the last eight, the Scotsman averaging 111 and landing a 121 finish in the fifth leg as he knocked Peter Wright out with a 5-1 victory in the last match on stage.