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.

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