Donald Jacob Hager Jr., better known as Jack Swagger and Jake Hager, is an American professional wrestler, former mixed martial artist, former amateur wrestler, and slap fighter. A standout amateur wrestler at the University of Oklahoma, he earned All-American honors in 2006 while setting the school record for most pins in a season before signing with World Wrestling Entertainment (WWE) later that year. During his WWE run, he became a former World Heavyweight Champion, ECW Champion, United States Champion, and Money in the Bank winner before leaving the company in 2017.