#2. Ric Flair
Like Hulk Hogan, Ric Flair is a two-time WWE Hall of Famer. He holds many accolades and records to his name, but he is not a Grand Slam Champion.
Flair kicked off his wrestling career in early 1970s. After working on different promotions, The Nature Boy joined WWE in 1991 to become one of its biggest stars. The 72-year-old had several runs with WWE, where he won the World Heavyweight Championship, Intercontinental Championship, and Tag Team Championships.
The Nature Boy also wrestled in NWA and WCW for several years. He won many titles, including the World Heavyweight Title and the NWA United States Championship.
Unfortunately for Flair, he never won the European Title or the Hardcore Championship. He also never won the United States Championship in WWE. Hence, he never became a Grand Slam Champion.
This month, WWE announced the release of Ric Flair from his contract. It seems impossible that the 72-year-old will ever become a Grand Slam Champion in WWE.