http://fightnetwork.com/ - Fight Network's John Pollock, John Ramdeen and Robin Black bring us the latest including a preview of Frank Mir vs. Antonio "Bigfoot" Silva ahead of UFC Fight Night Porto Alegre; previous testosterone-replacement therapy usage and the new drug testing policies on Newsmakers. Catch our UFC Fight Night Porto Alegre Pre-Show LIVE on Feb. 22 at 5 p.m. ET followed by the LIVE Prelims at 6 p.m. ET. For additional coverage of MMA, boxing and pro-wrestling check out http://fightnetwork.com/ or follow us on Twitter at https://twitter.com/fightnet or find us on Facebook at https://www.facebook.com/FightNetwork