Cool chapter.
1. Good to see Katakuri is fine and well, and of course, being himself.
2. Momonosuke is a lucky bastard. Yamato's boobs.
3. Sanji calling Robin to rescue him is the moment where to trust the one you save to save you. If Sanji didn't call for Robin, Robin would feel/think that Sanji sees her weak. This has to be. When you ask someone to help you, you indicate that they are strong and capable to do so.