CSKA-Sofia haven't lost a match in 50 of their last 59 matches in First League
A period of 6 straight games without a defeat marks the First League campaign of Botev Vratsa
Botev Vratsa have managed to keep a clean sheet in their last 4 home league games
In Botev Vratsa's 4 most recent First League matches, there have been under 2.5 goals scored