Adrian Lewis and Stephen Bunting will miss the BoyleSports World Grand Prix after returning positive tests for Covid-19 ahead of the event.
All players and staff involved in the World Grand Prix underwent Covid-19 testing on arrival at the Ricoh Arena on Monday, with only two positive tests returned.
Both Lewis and Bunting will now return home to isolate in line with Government guidelines, and by following the relevant protocols neither came into contact with other people during their time at the Ricoh Arena.
In line with event rules, Lewis will be replaced by Simon Whitlock - the next non-qualified player on the PDC Order of Merit - provided that the Australian provides a negative result when he is tested on arrival at the Ricoh Arena on Tuesday night.
Whitlock would then play Chris Dobey on Wednesday night, with Tuesday's session now featuring just seven matches.
Bunting, meanwhile, will be replaced by Jeffrey De Zwaan, who will also be required to provide a negative test result when he arrives in Coventry on Tuesday night before then being able to play Jamie Hughes in round one.
The revised schedule of play for the BoyleSports World Grand Prix can be seen below.
BoyleSports World Grand Prix
Revised Schedule of Play
Tuesday October 6 (1800 BST)
7x First Round
Danny Noppert v Ryan Searle
Mensur Suljovic v Dirk van Duijvenbode
Jose De Sousa v Devon Petersen
James Wade v Mervyn King
Rob Cross v Gary Anderson
Michael van Gerwen v Krzysztof Ratajski
Michael Smith v Dimitri Van den Bergh
Wednesday October 7 (1800 BST)
9x First Round
Brendan Dolan v Kim Huybrechts
Jonny Clayton v Ian White
Dave Chisnall v Glen Durrant
Daryl Gurney v Joe Cullen
Peter Wright v Ryan Joyce
Gerwyn Price v Jermaine Wattimena
Nathan Aspinall v Gabriel Clemens
Simon Whitlock v Chris Dobey *
Jamie Hughes v Jeffrey De Zwaan *
* Games subject to Simon Whitlock & Jeffrey De Zwaan receiving negative results to Covid-19 tests. Should either player return a positive test, their scheduled opponent would then receive a Bye into the second round.