User blog comment:ARZC/Luffy vs Lucci/@comment-3119203-20120308015457

They didn't affect Luffy. The only way Luffy was damaged was through Ranyaku (which is like a blade), through teeth or claws, or through Rokougan, which directly affects internal organs. And if you apply enough force to rubber, it will yield, but I don't think that happened in this fight.