After JoJo's eviction, the BB Queens were tested how well they can recognize each other in stills from their experience in BBUS, and eventually Monet won.
At the HOH Ceremony, Monet explained, "I have nominated Libra and Sarah for eviction. Libra, you're just the pawn, and I haven't talked to you. Sarah, go away bitch! I am done with you, get evicted, already."
At POV, Monet won once again, and decided to use it to save Sarah from the block. With that, she named Kara the replacement, explaining "I have decided to use the POV on Sarah. Congrats! You are fucking safe once again. And, because of new information that was been passed down to me - I have decided to nominate Kara as the replacement."