UFC Vegas 72 was headlined by a clash of surging bantamweight contenders Song Yadong and Ricky Simon.While both fighters started cautiously, Yadong started finding his mark more often than not as the fight progressed. 'Kung Fu Kid' scored an emphatic knockdown in the final seconds of the fourth round as Simon was saved by the bell. Yadong continued his onslaught in round 5 to score a TKO win, hardly a minute into the round.The Chinese standout went on to call out Sean O'Malley in his post-fight interview.Matty Betss@MattyBetssSONG YADONG ROUND 5 KO +3300LETS FUCKING GO614SONG YADONG ROUND 5 KO +3300LETS FUCKING GO https://t.co/LYOPj84lMfMiddleweight prospects Caio Borralho and Michal Oleksiejczuk faced-off in the co-main event of the night. Oleksiejczuk started connecting early on and likely edged out the opening frame despite a late takedown from 'The Natural'. Borralho went for a takedown early in round 2 and was successful. Oleksiejczuk seemed at his wits' end against Borralho on the ground where the Brazilian eventually finished the fight with a rear-naked choke.MMA Melotto@MMAmelottoA vitória do brasileiro Caio Borralho sobre o polonês Michał Oleksiejczuk, agora há pouco, no UFC.53232A vitória do brasileiro Caio Borralho sobre o polonês Michał Oleksiejczuk, agora há pouco, no UFC. https://t.co/HV8aRW09UVMiddleweight slugger Cody Brundage suffered a second-round TKO loss to Rodolfo Vieira. Brundage shocked fans by choosing to jump a guillotine on the jiu-jitsu ace.MMA Melotto@MMAmelottoA vitória do brasileiro Rodolfo Vieira sobre o americano Cody Brundage, agora há pouco, no UFC.42124A vitória do brasileiro Rodolfo Vieira sobre o americano Cody Brundage, agora há pouco, no UFC. https://t.co/gqSnAzwXtMMexican standout Fernando Padilla scored an impressive first-round TKO win over Julian Erosa in his UFC debut which ended in a controversial stoppage.Talen Guzman@TalenGuzmanStrong performance from Fernando Padilla at #UFCVegas72 as he finishes Julian Erosa in the 1st round of an exciting affair.In his UFC debut tonight, Padilla made a strong account of himself with accurate shots that caused a TKO.The stoppage was VERY questionable, though. #MMA51Strong performance from Fernando Padilla at #UFCVegas72 as he finishes Julian Erosa in the 1st round of an exciting affair.In his UFC debut tonight, Padilla made a strong account of himself with accurate shots that caused a TKO.The stoppage was VERY questionable, though. #MMA https://t.co/wRQKthq3EPHeavyweight prospect Marcos Rogerio de Lima put on a one-sided beating on Waldo Cortes-Acosta en route to a unanimous decision win.SoloMMA@Solo_MMAMarcos Rogerio de Lima vence a Waldo Cortes-Acosta por decisión unánime (29-28, 29-28, 29-28)#UFCVegas72 Marcos Rogerio de Lima vence a Waldo Cortes-Acosta por decisión unánime (29-28, 29-28, 29-28)#UFCVegas72 https://t.co/EtlAgJOC4DDebutant Trey Waters put on a striking clinic to hand Josh Quinlan his first professional loss at UFC Vegas 72.UFC@ufc1-0!!! Hell of a performance by Trey Waters in his UFC debut He gets his first win in the UFC via unanimous decision #UFCVegas72415371-0!!! Hell of a performance by Trey Waters in his UFC debut 😆 He gets his first win in the UFC via unanimous decision #UFCVegas72 https://t.co/ZkkkkusRegUFC Vegas 72: Song vs. Simon full card resultsMain cardSong Yadong def. Ricky Simon via TKO (1:10 of Round 5)Caio Borralho def. Michal Oleksiejczuk via submission (Rear-naked choke) (2:49 of Round 2) Rodolfo Vieira def. Cody Brundage via submission (arm triangle) (1:28 of Round 2)Fernando Padilla def. Julian Erosa via TKO (1:41 of Round 1)Marcos Rogerio de Lima def. Waldo Cortes-Acosta via unanimous decision (29-28 x3)Trey Waters def. Josh Quinlan via unanimous decision (30-27 x3)PrelimsMartin Buday def. Jake Collier via unanimous decision (29-28 x3)Cody Durden def. Charles Johnson via unanimous decision (30-27 x3)Irina Alekseeva def. Stephanie Egger via submission (kneebar) (2:11 of Round 1)Marcus McGhee def. Journey Newson via submission (Rear-naked choke) (2:03 of Round 2)Jamey-Lyn Horth def. Hailey Cowan via unanimous decision (29-28 x3)