Upon completing his assignment in Washington, he moved to Chicago, where over a period of seven years he operated 13 schools of his own.Yang trained and coached Muhammad Ali before and during his travels to Germany, Jamaica, the Philippines, and Korea.
Upon completing his assignment in Washington DC, he moved to Chicago, where over a period of seven years he operated thirteen schools of his own. Grand Master Tiger Yang trained and coached Muhammad Ali, before and during his travels to Germany, Jamaica, the Philippines, and Korea.