Complex sentence: Hearts have been members of the Scottish Premier Reserve League since its foundation in the 1998/99 season, however the Reserve League has been abandoned for season 2009/10 due to financial constraints and a lack of support from other clubs.
Split into simpler sentences: Hearts have been members of the Scottish Premier Reserve League since its foundation in the 1998/99 season. The Reserve League was abandoned for season 2009/10 due to financial constraints and a lack of support from other clubs.