Complex sentence: The game was effectively a champions title match since Ludogorets were two points behind the team from Sofia, and the victory made them champions of Bulgaria in their first season in the top division, just one point ahead of CSKA.
Split into simpler sentences: The game was effectively a head-to-head league title match since Ludogorets were two points behind the team from Sofia. The victory made them champions of Bulgaria in their first season in the top division, just one point ahead of CSKA.