Boxing veteran Manny Pacquiao took on Yordenis Ugas in the main event of a packed fight card on August 21. The event took place at the T-Mobile Arena in Paradise, Nevada. The WBA (super) welterweight title was on the line for this fight.Pacquiao, who was possibly competing in his last boxing match, lost the fight to Ugas via unanimous decision. The three judges scored the fight 115-113, 116-112 and 116-112.Manny Pacquiao makes what could be the last ring walk of his illustrious career. #PacquaioUgas pic.twitter.com/0RmWy40uBu— ESPN Ringside (@ESPNRingside) August 22, 2021In the co-main event, Robert Guerrero edged out a decision victory against Victor Ortiz. All three judges scored the contest 96-94 in Guerrero's favor.After scoring a knockdown in the fight's opening round, Mark Magsayo finally managed to finish Julio Ceja in the 10th round and earned a knockout victory.And Ceja is out cold!!! What a knockout! That might be the KO of the year! Magsayo has arrived with some strong competition for Oscar Valdez’s KO of Berchelt #PacquiaoUgas— Mike Coppinger (@MikeCoppinger) August 22, 2021Carlos Castro faced off against Oscar Escandon in a scrap at featherweight. Castro also managed to finish his opponent in the 10th round and walked out with his hand raised.Antonia Contreras also pulled off an upset at the event as he edged out a decision win over John Leo Dato. It was Dato's first loss as a professional boxer.The 17-year-old Mickel Spencer made his professional boxing debut against Eliseo Villalobos. Rising prospect Joey Spencer's little brother dominated the entire fight and earned a unanimous decision victory.Main card results of Manny Pacquiao vs Yordenis UgasYordenis Ugas def. Manny Pacquiao via unanimous decision Robert Guerrero def. Victor Ortiz via unanimous decision (96-94, 96-94, 96-94)Mark Magsayo def. Julio Ceja via TKO (0:50 of Round 12) Carlos Castro def. Oscar Escandon via TKO (1:08 of Round 10)Manny Pacquiao vs Yordenis Ugas prelims resultsFrank Martin def. Ryan Kielcweski via unanimous decision (100-90, 100-90, 100-90)Steven Torres def. Justin Rolfe via TKO (2:33 of Round 1)Cameron Sevilla-Rivera vs Burley Brooks ended in a split drawAntonio Contreras def. John Leo Dato via unanimous decision (78-73, 77-74, 77-74)Mickel Spencer def. Eliseo Villalobos via unanimous decision (40-36, 40-36, 40-36)Jose Valenzuela def. Donte Strayhorn via TKO (1:30 of Round 4)