(Reuters) -Easter is one of the most important occasions in the Polish church calendar, but Jagiellonia Bialystok's Conference League exploits have caused an Archbishop to organise an earlier Holy Thursday mass to cater for the club's fans.

Jagiellonia Bialystok, who won their first league title last season, have reached the quarter-final stage in their best ever European run, and host Real Betis on Thursday after losing the first leg 2-0 in Spain.