The wrestling world mourns the death of Sabu, a former ECW champion and pro wrestling legend, who died Sunday at age 60.

The wrestling world has been saddened by the passing of Sabu at 60 years old. WWE Superstars and wrestling icons have now paid tribute to the hardcore legend.

GCW star Joey Janela revealed that Sabu's team provided the ECW legend the controversial kratom drug before their last match in Spring Break last month.

Professional wrestler Terry Brunk, known to fans by the ring name Sabu, died at the age of 60. WWE announced the news Sunday. The cause of death was not disclosed.

Bully Ray has paid tribute to Sabu and acknowledged one of his important contributions to pro wrestling, which was a key element of the Dudley Boyz's gimmick.

Sabu, one of the most popular hardcore wrestlers during his run with ECW in the 1990s before a brief run with WWE in the mid-2000s, has died, according to PWInsider.com. He was 60. A cause of death was not disclosed. Sabu, real name Terry Brunk, had his retirement match against Joey Janela last month.

Sabu revolutionized hardcore wrestling in ECW throughout the 1990s and was involved in a number of classic matches with the likes of Taz, Mick Foley and Rob Van Dam. A former ECW Tag Team champion, ECW World Television champion and ECW World Heavyweight champion, he is widely regarded as one of the most decorated competitors in company history.

Sabu was best known for "hardcore wrestling," performing in matches with barbed wire and foreign objects such as chairs, tables, ladders and baseball bats.