Young Boys suffered their first defeat of the season, losing to Neuchatel Xamax in an ill-tempered match in which both teams were reduced to ten men.
Young Boys maintained their unbeaten run with a 2-1 victory at nearest challengers Lucerne, depite having fallen behind in the second-minute.
Tunisia coach Humberto Coelho has named Caen's Fahid Ben Khalfallah and Al Ahly's Anis Boujlebene for his 25-man squad for the upcoming qualifiers.
