Is it possible to buy Korean national team football jersey in Mexico?

Hola. I'm Korean who planning to visit Mexico next week and planning to watching World Cup at Guadalajara.

Since I currently living in United States, I failed to buy Korean national football jersey, but I'm wondering if it's able to buy in Mexico city, or Guadalajara because I assume some people could sell it for Korean tourist who visit Mexico for world cup. I don't care if it's official jersey or replica but curious if they sell this.

Additionally, I would like to buy Mexico national jersey as well, I'm wondering how much is the average price if I buy it on souvenir store.

Thank you!