Former UFC heavyweight champion Junior dos Santos is currently set to fight Tai Tuivasa in the main event of UFC Fight Night 142 on Dec. 2 from within the Adelaide Entertainment Center in Adelaide, Australia. Now the former title holder has entered a verbal confrontation with his upcoming opponent ahead of their match up.\r\n\r\nUFC News\r\n\r\nSpeaking to Sporting News, dos Santos let his thoughts on Tai Tuivasa be known.\r\n\r\n\u201cHe said he represents street fighting. I was watching the fight last night and saw that and was like, \u2018What?! That\u2019s not even a martial art.\u2019 I thought I was fighting against a martial artist, but that\u2019s not the case. I want to know more about this, and one day I\u2019ll ask him. To represent street fighting \u2026 that\u2019s just stupid. Who fights in the streets? It\u2019s not even fair. That\u2019s a coward.\u201d\r\n\r\nLater speaking to Sporting News, Tai Tuivasa retaliated with a statement of his own.\r\n\r\n\u201cI was giving him credit for being a great, but he can go (expletive) himself now. Just because of what Bruce Buffer said? As if I\u2019m gonna say I\u2019m a black belt or something. Calling someone a coward is a bit shallow from a steroid injecting little muppet like that.\u201d\r\n\r\nNow Tai Tuivasa has taken to social media with a series of trash-talking. Check it out below.\r\n\r\n"When Junior Dos Steriods calls me a coward shut your bald ass head up I\u2019m a show you these streets December 2nd @junior_cigano \r\n#actinglikeyouneverhadastreetfight #lol #bambam #FTA #westernsydney #imfromthesestreets #esshaaaay #meetmeinthemiddle #thetakeover #itsmeagain #itspersonal #PHASE2"\r\n\r\nhttps:\/\/www.instagram.com\/p\/BpR4o4UF4NY\/?utm_source=ig_embed\r\n\r\n"Awwww you cwwwwwyyyyiiiing that why you mad mad lol #sookybaby you shoulda stuck to being a nice guy #bambam #FTA #westernsydney #getthestrap #kefe"\r\n\r\nhttps:\/\/www.instagram.com\/p\/BpSFnbNFInQ\/?hl=en&taken-by=bambamtuivasa\r\n\r\nFor more MMA news click here.