There was also 2 new HoH's crowned on the last episode on Thursday and tonight they both must select 2 houseguests each to be placed on the block for eviction. Those 4 houseguests up for eviction will then compete against each other in teams of 2 in the 2nd "Battle of the Block" competition of the season. The winning team of 2 not only is removed from the chopping block but they will also be safe from eviction for the week should the Veto be played on someone. Also by winning the competition they automatically remove the HoH that had nominated them for eviction leaving only 1 HoH standing for the remainder of the week.
