Super League have confirmed that there has been four positive coronavirus tests following the latest update.
Two players and two non-playing members of staff have tested positive, with the clubs unconfirmed.
All fixtures are planned to go ahead following the update.
Thursday September 24:
Hull KR v Leeds Rhinos (2:45pm – available to season ticket holders on the Our League app);
Hull FC v Salford Red Devils (6pm, live on Sky Sports);
Castleford Tigers v Huddersfield Giants (8:15pm, live on Sky Sports).
Friday September 25:
Warrington Wolves v Catalans Dragons (6pm, live on Sky Sports);
Wigan Warriors v Wakefield Trinity (8:15pm, live on Sky Sports).