Complex sentence: The door was left open for Dupree to, once again, become a La Résistance member and team with Conway, but there was no attempt to take Dupree Conway out of singles competition.
Split into simpler sentences: The door was left open for Dupree to, once again, become a La Résistance member, and team with Conway. But there was no attempt to take Rene Dupree, or Rob Conway out of singles competition.