Back in the ’90s I was fond of saying that the same things that ruined rock ’n’ roll ruined pro wrestling: cable TV, big arenas and big money. Not that I begrudged any of the wrestlers who were raking in the bucks, I just had a fondness for the old-fashioned down-and-dirty days of regional territories and local matches that were just a step above the carny circuit that spawned the sport. Of course, local wrestling never really went away: It just moved downscale to smaller venues with less money pushing it. That’s why an event like this, the return of the “squared circle” to its rightful place in the Music City — the venerable Fairgrounds Sports Arena — is a cause to celebrate with angry shouting, hissing at “heels,” and cheers for the “babyfaces.” And if you feel a presence over your shoulder, it’s probably just the spirit of Tojo Yamamoto scowling his approval from the great beyond. Free with fair admission.