Complex sentence: For the current 2006-07 season, though Maracle served Avangard as their starting goaltender for their previous seasons, he supported Aleksandr Fomichev as the team's backup goaltender.
Split into simpler sentences: For the current 2006-07 season, Maracle is still on roster for Avangard. Though he was their starting goaltender for their previous seasons, he is currently supporting Aleksandr Fomichev as the team's backup goaltender.