Michael van Gerwen suffered a shoulder injury during the 6-3 win over Chris Dobey in Aberdeen.
“The Green Machine” was leading 5-0 before the injury came, and he finished the match in great pain.
The injury means that he probably cannot participate in next week’s Premier League final in the O2 arena in London.
Despite receiving treatment after the match, the six-time champion was unable to face Dimitri Van den Bergh in the quarter-finals.
Van den Bergh, who then had an easy path to the final, ended this year’s Premier League in style with victory.
Jonny Clayton also secured Play-Off qualification in what turned out to be a dramatic night.
Gerwyn Price became the fifth player in Premier League history to go top of the league stage, having reached his ninth final of the 2023 season.
The Welshman opened the match with an emphatic 6-2 win over home hero Peter Wright, averaging 103 and securing victory with a superb 129 check.
Nathan Aspinall also needed an average of 103 to crush Play-Off rivals Clayton 6-1, bringing him level with ‘The Iceman’ ahead of the semi-final against Price.
However, Aspinall, who finished second in 2020, could not secure the win he needed to confirm a place in the top four, losing 6-3 to the league leaders in a tough match.
Belgian ace Van den Bergh was one of only two players in this year’s tournament who had not won a night prior to the trip to The Granite City, but he rectified that on the final night of the league stage.
The former World Matchplay champion started his campaign with a 6-4 win over Michael Smith, fending off a late setback to end Smith’s nine-match Premier League winning streak.
I gave it my all, and it finally worked for me tonight, reflected Van den Bergh, who finished the season in sixth place.
I had a chance, and I took it. Fair play to Gezzy. He showed his class once again but I stayed calm and I’m so happy with this win.
It is the first time I am in this position in the Premier League. I gave it my best and I just wasn’t meant to do this, but I never gave up, said a relieved “The Dreammaker”.
I have to say thank you very much to PDC. I felt really honoured to be a part of this, and even if it didn’t happen this time, no one can say I’ll never come back, Van den Bergh concluded.
The Premier League tour now heads to London’s O2 on Thursday 25 May for the final night.
Table-toppers Price will play compatriot and 2021 champion Clayton in an all-Welsh semi-final, before Smith and Van Gerwen meet in a World Cup replay in January, if ‘MVG’ is injury-free.
The respective semi-final winners will then progress to tonight’s final, where the battle for the £275,000 top prize reaches an exciting climax.