5 WWE superstars who are wrestling on borrowed time

#4. AJ Styles

AJ Styles entered WWE aged 38

Before any of you reading this get a mini-heart attack - No, AJ Styles does not have a career-threatening injury of any sorts. Sure, he's worked a lot through the past few years with niggling injuries, but other than that, he's pretty healthy.

The main issue with AJ Styles is his age. He's already crossed 40 and in 2019 he turns 42. In WWE years, that's quite a lot. Sure, there are superstars who have wrestled in their 40s, and some who still do so, such as Brock Lesnar, John Cena, Triple H, etc. but what many people don't realize is that AJ Styles' run in WWE is essentially for his retirement fund.

He's been open about the fact that his time with the company is limited and after nearly two decades of putting his body through all sorts of pain, he deserves to slow down. AJ Styles has had an exceptional run in WWE, but don't expect it to last very long.