Some sources indicate that Miyazato began training under Miyagi at the age of 13 .
Others state that Miyazato first trained under Miyazato 's own father and only began training under Miyagi at the age of 15 .
Some sources indicate that Miyazato began training under Miyagi at the age of 13 , while others state that Miyazato first trained under his own father and only began training under Miyagi at the age of 15 .