Board Thread:General Discussion/@comment-27511601-20151231040526/@comment-27524064-20160110034133

Actually I don't think he did take any damage in the Boros fight, I mean yeah Boros thought he did there but he didn't actually look damaged at all. It just looked like his clothes got scuffed up and he got kinda dirty. I think Boros may have just been being optimistic given how hard he was hitting him.

http://www.mangatown.com/manga/onepunch_man/c035/3.html