Three Boston United players in self isolation
The players have not been named by the club, but one has tested positive for COVID-19 after showing symptoms on Wednesday, the day after the Pilgrims won 4-0 at Leamington.
Two further players have since been told to self isolate.
A statement by the club read: “A member of the first team squad displayed symptoms of Covid-19 on Wednesday.
"The club's Covid Medical Officer therefore carried out a test, which proved positive. The player is now self isolating for 10 days. As a precaution, another first team player that was deemed to have been in close contact has been advised to self isolate for 14 days. A third player who displayed atypical symptoms today has been advised to self isolate and has been tested.
"All the players will only return to training once they are clear of the virus and deemed medically fit. The club has followed strict Covid guidelines and have liaised with the National League over the actions taken. As a result, at the present time, tomorrow's fixture against Guiseley will go ahead as planned but, of course, we keep the situation under review.
"We have also liaised with Leamington FC and Guiseley AFC over this situation.
"We, of course, wish the players a speedy recovery and will continue to follow the laid down protocols to try to keep all players and staff safe during this difficult time."
United are also due to host Hemel Hempstead in the FA Cup on Tuesday.