#8 Nikolai Volkoff (October 14, 1947 – July 29, 2018)
Nikolai Volkoff represented a breed of old-school heels in a time when anti-national gimmicks could get heels killed. Though he came from Croation descent, he played a villanous, anti-American Russian for most of his career and cemented his legacy as a legend of the business.
He had an extensive tenure with the WWF, but spent most of his time in AWA and Mid-South Wrestling. Later on in his life, he began to face issues with dehydration, amongst others. He was even hospitalized in 2018, but passed away days after being released at the age of 70.
Corey Graves deleted his Tweet! More details HERE.
#7 Matt Cappotelli (November 12, 1979 – June 29, 2018)
Matt Cappotelli won Tough Enough along with John Morrison/Johnny Nitro. He was offered a developmental contract but around 2007, complications with brain cancer began to appear. He underwent successful surgery, but soon after, his career had to end due to a malignant brain tumour.
He was released from his WWE contract in 2009. In mid-2017, he revealed that he had been diagnosed with grade IV glioblastoma multiforme. Unfortunately, it turned out too little too late and he tragically passed away mid-2018, aged just 38.