#10 Test (Age: 33)
Fans who have been following WWE since the Attitude Era days would recognise Test, even though he wasn’t a big name like some others in this list. Test was stuck in the gap between upper mid-card and a main eventer. The pushes that he had never really worked, and he was left languishing down the card despite having the skills to top the charts.
Apart from WWE, Test even had spells in some independent promotions and TNA before retiring from in-ring action.
However, he didn’t have much time to spend in retirement as he died due to an overdose of oxycodone just four days before his 34th birthday. It was later revealed that he was suffering from a chronic brain injury due to repeated blows to the head, which might have happened while wrestling.