The Legends Sports Universe Boxing Federation's junior lightweight title was originally contested through a four-man tournament featuring Cassius Baloyi, Yodsanan Nanthachai, Joel Casamayor and Jesus Chavez.

Though he came out of the preliminary fights as the #3 seed, Casamayor was regarded as the favorite entering the tournament, which unnerved Baloyi, who had been quite impressive in building a 15-0-1 mark with 11 KOs. 

Baloyi's semifinal match would be against Chavez, who dominates him for much of the fight, putting him down in the fifth and again in the seventh. But Chavez accomplished all that despite a gash over his right eye that is opened, reopened and reopened even wider as the fight proceeds. So needless to say Chavez's corner in incredulous when the bout is stopped and Baloyi is awarded the TKO victory in the 10th round because the of severity of Chavez's cuts - with Chavez up 87-82 (x2), 86-83 at the time of the stoppage.

Meanwhile, Nanthachai would give Casamayor absolutely all he could handle in an action packed affair that sees both fighters averaging more than 70 punches a round through the first six rounds. Interestingly, the fight becomes more tactical despite its closeness, and in the end it goes to the cards, where Casamayor takes a majority decision 115-111 (x2), 115-110.

Baloyi is more impressive in the title fight than he was against Chavez, but ultimately runs out of steam trying to match Casamayor's pace. Casamayor pours it on and, ironically given the Chavez bout, a cut to Baloyi has the referee on extra guard and when Casamayor unloads without response in the 10th the bout is halted, making Casamayor the first LSUBF Jr. Lightweight champion.

Casamayor knocked out Mzonke Fana in the 5th of his first defense, but five months later lost the title to Edwin Valero via unanimous decision. 

But Valero, riding high after having blistered Nanthachai by knockout to earn the shot against Casamayor, goes AWOL and is ultimately stripped of the title a year later having never defended it. 

Casamayor battles Robbie Peden for the vacant title and regains the belt via TKO in the 13th. 

But Casamayor wouldn't defend the title for a year, when he was forced to face #1 contender Nanthachai or be stripped of the belt himself. Casamayor would honor the commitment and stop Nanthachai with an 11th round TKO in January 2012, then wait 10 months before defending it again, knocking out Roman Martinez in the sixth round in November.

Casamayor has a mandatory bout against the #1 contender, which with a year having passed since their last fight is once again Yodsanan Nanthachai, who will hope the third time is the charm.