When Zoro fought Mihawk in the East Blue, Mihawk asks Zoro his name, then when Zoro attacks him with his “secret technique”, he has a look of surprise, as if he’d seen this move somewhere before.
![](http://www.opfanpage.com/wp-content/uploads/2019/04/9OUh4Ao-1.jpg)
Mihawk clearly saw through his technique, there was no particular reason to be so surprised and scared.
![](http://www.opfanpage.com/wp-content/uploads/2019/04/9OUh4Ao-661x1024-1.jpg)
After the fight, he thanks Luffy for taking care of Zoro and tells Zoro to find his “true self” and his “true world”.
![](http://www.opfanpage.com/wp-content/uploads/2019/04/one-piece-2421583.jpg)
I’m not too clear on this, but since some of Zoro’s secret moves seem to originate from Wano such as “Asura”, and Zoro’s “Snatch” connection to Wano in the latest chapters, I think that Mihawk realized that Zoro is from Wano when he saw that technique.
![](http://www.opfanpage.com/wp-content/uploads/2019/02/ollll-1.x97424.png)
I know this might be a reach, but that Mihawk panel always intrigued me and I think it has a deeper meaning than “realizing Zoro’s potential”.
*Theory by aliassum