ONE Championship mixed martial artist and submission grappler Bruno Pucci of Brazil says all the pressure is off his shoulders heading into his highly anticipated return to the ONE ring next weekend.The 34-year-old United BJJ representative is set to take on grappling phenom Dante Leon in his first fight back in the world's largest martial arts organization. And he can't wait to score a massive upset.In a recent interview with ONE Championship, Pucci discussed his upcoming battle with Leon and told fans not to count him out just yet. View this post on Instagram Instagram PostAngela Lee's husband said:"When you are concerned when you are fighting, sometimes when you have too much on your plate, you can fight certain ways, like not to lose, and that can kind of stop you. Not saying that Dante is gonna do that, but I’ve already been in those shoes where, like, ‘Man, I don’t wanna lose.’ And you wanna win, but you’re too concerned about not losing because the pressure is on you, so that sometimes can stop you. And for me, I don’t feel that at all right now."Needless to say, fans can't wait to see Pucci back in action, and they won't have to wait long.MMA fighter Bruno Pucci welcomes Dante Leon to ONE at ONE Fight Night 26 on Prime VideoMixed martial arts star and BJJ black belt Bruno Pucci is set to face Canadian grappling phenom Dante Leon when the latter makes his ONE Championship debut next weekend.The two will fight at ONE Fight Night 26: Lee vs. Rasulov on Prime Video, which will broadcast live in U.S. primetime on Friday, December 6, from the historic Lumpinee Stadium in Bangkok, Thailand.Fans in the United States and Canada can catch all the action live and free with an active Amazon Prime Video subscription. Stay tuned to Sportskeeda MMA for all the latest news and updates surrounding the event.