The 20-year anniversary celebration of SHOWTIME CHAMPIONSHIP BOXING continues in spectacular fashion on Saturday, Sept. 2, when James “Lights Out” Toney faces Samuel “The Nigerian Nightmare’’ Peter in a 12-round WBC heavy weight elimination bout on SHOWTIME (9 p.m. ET/PT, delayed on the west coast) at STAPLES Center in Los Angeles. In the co-feature, Eric Aiken defends his IBF featherweight title against Robert “The Ghost’’ Guerrero. [details]