"One Punch Man" main character Saitama is so far one of the most OP characters in anime universe right now. He defeats his enemies with one punch and only Lord Boros survived a direct punch from him. Every Saitama fans out there are waiting for season 2 to see who can give Saitama his first ever defeat. It seems that the manga just did give Caped Baldy a defeat.
According to Mstars News, Saitama participated in a martial arts tournament in Charanko's name (Bang's remaining disciple in his Dojo). For his disguise to be perfect, Saitama decided to try wearing a wig. Saitama, as expected by "One Punch Man" fans, of course, defeated all his enemies with one punch. A man named Suiryuu decided to follow the path and finished his enemies with one kick to demonstrate his power.
As expected, the one puncher and one kicker met in the final round of the martial arts tournament. Suiryuu knew the hidden strength of the "One Punch Man" main character and decided to go all out. Suiryuu demonstrated his hidden power by launching a barrage of powerful attacks to Saitama, who cannot go for a counterattack because he's too focused on keeping the wig down his head. With the battle being intense, the wig fell and everybody was shocked to see an impostor. As per the rule of the tournament, Saitama was eliminated because of unauthorized use of headgear (the wig) and Suiryuu was declared the winner of the battle.
According to Geek, "One Punch Man" season 2 is in Production. There will be a lot of new characters and maybe Suiryuu will be included. The anime has been following the manga faithfully, so the epic Suiryuu VS. Saitama battle might be included in the most awaited second season.