Commenting on BLACK SABBATH's decision to record and tour without original drummer Bill Ward, Portnoy said: "Here's my issue with it. I have no issue if Bill Ward is not fit to play in SABBATH, as they're saying. Or I have no issue with it if they're having money litigations and problems and they couldn't agree on something that was fair. My issue is that they're calling it a BLACK SABBATH reunion. It's not a BLACK SABBATH reunion without the four of them. It is now just the latest BLACK SABBATH lineup."

He continued: "Why is this BLACK SABBATH, but HEAVEN & HELL wasn't BLACK SABBATH? I mean, we all know the real reason for it. But it's not a true BLACK SABBATH reunion without Bill Ward. And if they need to do it without Bill, then they do it without Bill. But don't call it a reunion. It's just BLACK SABBATH 2013."

Portnoy, who co-founded DREAM THEATER more than 27 years ago, abruptly quit the band in September 2010 while on tour with AVENGED SEVENFOLD. He has since been replaced by Mike Mangini (ANNIHILATOR, EXTREME, JAMES LABRIE, STEVE VAI).

Portnoy played on AVENGED SEVENFOLD's 2010 album, "Nightmare", following the death of that band's drummer, Jimmy "The Rev" Sullivan, and toured with them for the entire second half of that year.

Portnoy announced his departure from ADRENALINE MOB in June due to "scheduling conflicts." A replacement drummer has not yet been announced.

Interview (audio):