Complex sentence: The first two evictees faced off in a duel, with the winner advancing to face the next evicted houseguest, permanently eliminating the losers; following four duels, the remaining evictee will re-enter the house.
Split into simpler sentences: The first two evictees face off in a duel, with the winner advancing to face the next evicted houseguest, while the loser will be permanently eliminated. Following four duels, the remaining evictee will re-enter the house.