After a long hiatus from the sport owing to a leg injury, Conor McGregor is now gearing up for his UFC return against former three-time Bellator lightweight champion Michael Chandler.Chandler, a seasoned wrestler, has seemingly made 'The Notorious' consider brushing up his own grappling skills. In a new Instagram post, the Irishman shared pictures of him training jiu-jitsu donning a gi, complete with his new black belt. View this post on Instagram Instagram PostMcGregor's dedication to improving his craft has riled up his fans, with many noting their opinions in the fighter's comments section. Let's take a look at a few reactions.In a wishful response, @bradleyleewrenn wrote:"Seems to be dropping weight. UFC 300. Chandler is a dead corpse."Another user @maclifesquad wrote:"That Submission vs. Chandler will look real good on the record 🥋💯."Instagram user @mcgregor_italianpage wrote:"The King Is back 👊🏻❤️."In a rather salty response, @xslavicx wrote:"Bro, your career is over. Avoid the brain damage and enjoy the fruits of your labor like you have been."In a hilarious quip on McGregor receiving a black belt in jiu-jitsu, @hemi_lio_g94 wrote:"New mythical fighter. Black Belt McGregor."In an appreciatory response, @thisisjoshprince wrote:"Working on the ground, gotta love the work.🔥"@abetsimiklis opined:"The greatest comeback in sports history, two belts, bjj black belt, and a bank full of cash.. when it’s all said and done, it’ll go down in history @thenotoriousmma."In a hostile reaction, @engkusyafiq92 wrote:"Chandler is gonna kill [yo]u mcNugget."Another netizen @dawn_daysss wrote:"The redemption story coming.🔜💪🏼"Image courtesy @thenotoriousmma on InstagramWhen Michael Chandler predicted a knockout against Conor McGregorConor McGregor and Michael Chandler are two of the most exciting athletes in the premier promotion, and their upcoming fight is expected to be a top-selling pay-per-view for the UFC. View this post on Instagram Instagram PostDespite McGregor's alluring laurels, 'Iron' believes he will handily beat the Irishman when they lock horns in the octagon. During a media interaction at UFC 285, the former lightweight title challenger gave his prediction for the fight, saying:"I'm going to not just slice through him but bludgeon him with both of these hands and do whatever I want, both standing or on the ground, and finish him by the second round. That's my mistic Mike prediction."Catch Michael Chandler's comments on the Conor McGregor fight below (5:02):