Nigerian and Racing Genk forward Paul Onuachu will be quarantined for a week after testing positive for coronavirus,
According to Belgian news hub, HLN Sport, all the players were tested on Tuesday in the run-up to the first friendly game ahead of the new season.
All the players tested negative except Onuachu
The 26-year-old returned late for pre-season training after he was stranded in Nigeria due to travel hassles caused by the Covid-19 pandemic.
Genk will face Eendracht Termien in the exhibition game on Thursday.
There is quite a bit concern within the team as they have been training with Onuachu for more than a week now.
The 2020/21 Belgian Pro League season will kick off next month after it was aborted in June no thanks to the coronavirus pandemic.