I does look like Free! at first glance... given they're both done in a swimming pool. I felt the same when I saw Re:Main (water polo anime) as well. haha

Yeah, I trapped my mom in the anime world a few years back... haha
I haven't checked the manga for this, but I might do so. :) Sometimes, I read sports manga and in a couple years, they become anime like "Blue Lock" and "Ao Ashi". It made me so happy to see some of my fave sports manga come to life in the anime!

True.. I learned to love baseball because of anime (and it's not popular in my country at all)... I enjoyed watching WBC last year and some Major highlights because of it!