Benfica are joined at this stage of the season by Fenerbahce, Slavia Prague and FK Vadar as clubs that have played at minimum 20 games in their respective leagues and remain undefeated in their league campaigns but surprisingly Fenerbahce are also not in top spot in Turkey at this stage of the season.
Benfica have a huge home game this coming weekend in an O Classico as they host league leaders FC Porto with anything short of a victory being considered a blown opportunity with just 10 games left in the season and the club looking to cut the deficit for top spot.
The last time a club went undefeated in a season and failed to capture the league title was during the 2007-08 season when Red Star Belgrade lost the title to rivals Partizan Belgrade. Benfica did have an undefeated season in 1977-78 and also lost the league title that year on a tie breaker to FC Porto.


