Newly crowned UFC interim welterweight champion Colby Covington has entered a war of words with Brazilian Jiu-Jitsu's Garry Tonon. Now the grappling phenom has decided to fire back. Appearing on the MMA Roasted podcast, Covington claimed he could submit the five time Eddie Bravo Invitational champion in a grappling match. Taking to Instagram, Tonon has come forward with a response. Check it out below: "Yesterday on MMA roasted @colbycovmma said he could beat me in a grappling match. Let's see it happen, I only have one condition, Colby's mama has to be there to wipe up the drool after ya boy gets SLEPT!" https://www.instagram.com/p/BkDTdOeFkII/?hlen Colby Covington faced off against former UFC lightweight champion Rafael dos Anjos for the interim welterweight title in the co-main event of UFC 225 on June 9. The fight went the distance, with Covington ultimately earning a unanimous decision victory for the belt. For more MMA news click here.