More on KentOnline
Dover's National League clash at home to Chesterfield on Tuesday night has been postponed.
Whites were due to host the in-form Spireites at Crabble but the game is off after positive Covid-19 tests in the Chesterfield squad.
It is the eighth game Dover have had postponed already this season.
Whites got through October without any fixtures being called off but they missed their game at Wealdstone on October 14 as a precaution while they waited on Covid-19 test results.
Since then Andy Hessenthaler's men have played just two league games - against Woking and King's Lynn.
The home clash with Boreham Wood was called off due to their opponents' FA Cup progress. Then league matches with Maidenhead, Chesterfield, Solihull Moors, Wrexham and the rearranged clash with Wealdstone were all postponed due to a Covid outbreak in the Dover squad.
Tuesday was the re-arranged game with Chesterfield so it means Dover will now hope to return to league action on Boxing Day when they host Dagenham in a televised clash.
Dover, who were knocked out of the FA Trophy 2-1 at Woking on Saturday, sit bottom of the National League after only playing nine matches so far this season.