The Scabbards are already wounded. Wouldn't be surprised if some of them (Inu, Kappa, Izo) are used to hype up the Calamities while Sanji tries to take Zoro to get some healing. Props to Marco if he's doing fine with 3 guys fighting him but I wouldn't be surprised if he's getting a bit overwhelmed. His stamina won't last forever and Perospero likely joined in to assist King and Queen.