It looks like Sly Stallone may have another flop on his hands. Monday's much-hyped 90-minute premiere of NBC's The Contender averaged a lightweight 8.3 million viewers. The boxing saga got knocked out by original episodes of Two and a Half Men (17.6 million) and CSI: Miami (21.3 million). The Contender gets another shot this Thursday at 10 pm/ET, before settling into its regular time slot this Sunday at 9 pm/ET.