Buffalo's Marcell Dareus Is Ready to Kick Ass

Buffalo Bills superstar Marcell Dareus says he's PUMPED to make his 2016 debut after serving his 4 game drug policy suspension -- explaining, "I sought out the help I need and I'm moving on."

Dareus joined the guys on the "TMZ Sports" TV show on FS1 and told us about the impact his life coach, Bruce Smith, has had on him ... and why he's more motivated than ever to be a great person and player.

Oh, and he also dishes out some smack talk to the L.A. Rams -- telling us how he plans to celebrate in Los Angeles if/when they upset the NFC West leaders.