It appears that Rey Mysterio’s son, Dominik Gutiérrez is following the footsteps of his father and is currently training at Lance Storm's Storm Wrestling Academy in Calgary, Alberta, Canada. Mysterio noted on Instagram that Dominik just started a three-month training session at Storm's academy.
The 21-year old Dominik has actually appeared on WWE TV for some of the storylines with Rey, most notably the Rey Mysterio/Eddie Guerrero feud back in the summer of 2005. Below are recent photos of Rey, Dominik and Storm at the school: