10 Future WWE Grand Slam Champions

10. Sheamus

Well, Sheam-o certainly isn't destined for greatness in the long-term future, but he sure is close to Grand Slam glory.

Having already held the WWE, Raw Tag Team, and United States titles across the last four years, only the Intercontinental Championship still eludes him. Eventually, Sheamus & Cesaro will come to an end. While 2018 has seen fewer tag team split-ups than 2017, the pair started like as just a couple of floundering mid-carders thrown together. At some point, Vince will surely think, "Hey, they aren't doing anything and could both be making Roman look strong in singles matches. Split them up!". Ok, maybe not that exactly, but Sheamus and Cesaro's legacy probably won't be defined by this team.

Their breakup is inevitable, and once it happens, Sheamus will eventually find himself on the brand with the Intercontinental Championship. And since WWE is insistent on him staying around far past his world championship prime, he'll likely cross paths with an Intercontinental Champion or two. Despite WWE successfully rebuilding the Intercontinental title's prestige over the last year or so, it wouldn't be too unlikely to see Sheamus finally nab himself that last single's championship.