3 WWE careers that ended too soon and 2 that went on too long

#2: Went on too long: Kane

Kane became WWF Champion in 1998 and was still competing 20 years later.

When Kane made his shocking debut at Bad Blood 1997, few fans could have expected that over 20 years later, the big red machine would still be around.

Making his presence at the expense of The Undertaker, Kane's battles with his older brother have been a consistent story in his career, but not the only one.

Over the years, Kane has battled the likes of John Cena, Edge, Randy Orton, Triple H, Shawn Michaels, and countless more huge names.

Unfortunately, Kane has clearly slowed down, and due to the longevity of his career, has been a part of some of the worst storylines.

Now the mayor of Knox County, Tennessee, it seems Kane's in-ring career may be behind him, perhaps for the best after his performance last year at Crown Jewel.