Conor McGregor often gives his reactions on social media during big UFC events. Saturday night's UFC 266 was no exception.As the main event title fight between Alexander Volkanovski and Brian Ortega rolled into action, Conor McGregor took to Twitter to throw shade at the UFC featherweight champion."I’d kick this volovski (sic.) head off like it was a rugby ball I was kicking. 5’4! And full of muscle! Hahahahaha little fart he is. Not even a little fart. A shart haahahahaj jackass," Conor McGregor tweeted.Conor McGregor@TheNotoriousMMAI’d kick this volovski head off like it was a rugby ball I was kicking. 5’4! And full of muscle! Hahahahaha little fart he is. Not even a little fart. A shart haahahahaj jackass .10:07 AM · Sep 26, 20213871581I’d kick this volovski head off like it was a rugby ball I was kicking. 5’4! And full of muscle! Hahahahaha little fart he is. Not even a little fart. A shart haahahahaj jackass .This was another on-brand, in-character moment from Conor McGregor. The Irishman never hesitates to fire shots at his contemporaries. However, targeting Alexander Volkanovski's height is somewhat hilarious coming from McGregor.Alexander Volkanovski stands at 1.68m, while Conor McGregor is 1.75m. Raphael Assuncao, who is 1.63m tall, also tweeted about learning from Alexander Volkanovski's grit and temperament.Raphael Assuncao@RaphaAssuncaoGotta learn a thing or two watching this “little guy” compete #UFC266 #AlwaysLearning10:45 AM · Sep 26, 202151Gotta learn a thing or two watching this “little guy” compete #UFC266 #AlwaysLearningConor McGregor later changed his tune slightly and gave due credit to Alexander Volkanovski. The Aussie faced tremendous adversity and recovered to beat Brian Ortega over five rounds. Volkanovski walked away with a unanimous decision victory. Conor McGregor@TheNotoriousMMANot a bad fight. Congrats shartsy10:43 AM · Sep 26, 20215841379Not a bad fight. Congrats shartsyIn a round for the ages, Volkanovski survived two submission attempts by Ortega. He then reversed the position and ended the third round of the contest with dominant ground-and-pound.With the win, Volkanovski took his current streak to 20 professional MMA wins, the longest among active UFC fighters.Mike Bohn@MikeBohnMMAAlexander Volkanovski has won 20 fights in a row. Validated his title reign tonight for anyone who questioned it after the Max Holloway fights. #UFC26610:40 AM · Sep 26, 202120341Alexander Volkanovski has won 20 fights in a row. Validated his title reign tonight for anyone who questioned it after the Max Holloway fights. #UFC266 https://t.co/jNlpka4xjWConor McGregor tweets about Nick Diaz vs. Robbie Lawler; congratulates Valentina ShevchenkoConor McGregor also tweeted about the five-round scrap between Nick Diaz and Robbie Lawler. The contest ended in a third-round KO win for 'Ruthless.' The Irishman paid respects to Diaz and Lawler, calling them 'The OG League' of the UFC.Conor McGregor@TheNotoriousMMAThis is tremendous! Let’s go @ufc! #TheOGLeague8:47 AM · Sep 26, 2021144531150This is tremendous! Let’s go @ufc! #TheOGLeagueHe congratulated Valentina Shevchenko on her successful flyweight title defense against Lauren Murphy. 'Bullet' picked up a a fourth-round KO win.Conor McGregor@TheNotoriousMMAGreat night of fights. Valentina you are tremendous! @ufc #TheBullet10:48 AM · Sep 26, 20212806231Great night of fights. Valentina you are tremendous! @ufc #TheBullet