Terry Brunk, a professional wrestler known to fans as Sabu who pioneered the so-called hardcore style that became a touchstone of wrestling in the 1990s and 2000s, has died, World Wrestling Entertainment said. He was 60.

It was not immediately clear when Mr. Brunk had died, and the company’s statement announcing his death did not give a cause. His family could not immediately be reached for comment.

Known for using tables and chairs in the ring, Mr. Brunk rose to national prominence with Extreme Championship Wrestling, a smaller and grittier circuit compared to the more mainstream World Wrestling Federation and World Championship Wrestling companies.