Dimitri Van den Bergh has been ruled out of the Cazoo Grand Slam of Darts, and will be replaced by Chris Dobey in this week's Wolverhampton event.
2021 World Matchplay finalist Van den Bergh has received a positive test result for Covid-19, and is subsequently self-isolating in Belgium.
As a result, he will not be able to compete in the Grand Slam of Darts, which begins on Saturday November 13 at the Aldersley Leisure Village.
Van den Bergh will be replaced directly in Group D by the next highest-ranked player from the same qualification criteria - in this case double Players Championship winner Dobey.
A quarter-finalist in his only previous Grand Slam appearance in 2016, Dobey will face Rowby-John Rodriguez in the opening matches on Saturday afternoon, with Stephen Bunting and Ryan Joyce also competing in Group D.
Tickets for the Cazoo Grand Slam of Darts can be purchased through Ticketmaster.
2021 Cazoo Grand Slam of Darts
Schedule of Play
Saturday November 13
Afternoon Session (1300 GMT)
8x Group Matches
Stephen Bunting v Ryan Joyce (D)
Krzysztof Ratajski v Martin Schindler (A)
Mervyn King v Bradley Brooks (B)
James Wade v Jim Williams (C)
Rob Cross v Boris Krcmar (C)
Jonny Clayton v Rusty-Jake Rodriguez (B)
Gerwyn Price v Nathan Rafferty (A)
Chris Dobey v Rowby-John Rodriguez (D)
Evening Session (1900 GMT)
8x Group Matches
Gabriel Clemens v Mike De Decker (E)
Jose de Sousa v Matt Campbell (F)
Luke Humphries v Mensur Suljovic (F)
Gary Anderson v Joe Davis (H)
Michael van Gerwen v Lisa Ashton (G)
Joe Cullen v John Henderson (G)
Peter Wright v Fallon Sherrock (E)
Michael Smith v Raymond van Barneveld (H)
Sunday November 14
Afternoon Session (1300 GMT)
8x Group Matches
Groups A-D Second Matches
Evening Session (1900 GMT)
8x Group Matches
Groups E-H Second Matches
Monday November 15 (1900 GMT)
8x Group Matches
Groups A-D Final Matches
Tuesday November 16 (1900 GMT)
8x Group Matches
Groups E-H Final Matches
Wednesday November 17 (1900 GMT)
4x Second Round
Thursday November 18 (1900 GMT)
4x Second Round
Friday November 19 (1900 GMT)
2x Quarter-Finals
Saturday November 20 (1900 GMT)
2x Quarter-Finals
Sunday November 21
Afternoon Session (1300 GMT)
Semi-Finals
Evening Session (1900 GMT)
Final