Anderson Silva steps back into the cage Saturday in London against Michael Bisping amid unfamiliar circumstances, as the taint of a steroid failure hangs over the significance of a middleweight clash years in the making, and the Sherdog Radio Network convened a Roundtable to put it all in perspective.

Host Jack Encarnacao welcomed Sherdog.com's Jordan Breen, Luca Fury of FurysFightPicks.com, and MMA Mania and AngryMarks contributor Steve Juon for a detailed discussion of the UFC Fight Pass offering Saturday, including dissension on two key fights.

Catch a panelist make the case for Thales Leities being the second fighter in a row to upset Gegard Mousasi, and why Norman Parke has an appreciable chance of edging favorite Rustam Khabilov.

That plus a complete prelim rundown and prospect assessment of undefeated Brit Tom Breese, who faces Keita Nakamura on Saturday's main card.