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Boxers who were undefeated before facing Manny Pacquiao

John Locher/AP Photo

Most Filipino boxing fans know the story of how Manny Pacquiao lost his undefeated record. Rustico Torrecampo, a name that will forever resonate in Philippine boxing, was the first fighter to score a victory against Pacquiao, and he did it in devastating fashion.

Pacquiao, however, has also gobbled up his fair share of undefeated records throughout his career, the last of which was Keith Thurman's to win the WBA welterweight super champion belt.

Here are the fighters who suffered their first loss of their careers against boxing's only eight-division world champion.

Rocky Palma (4-0-1)

A 16-year-old Pacquiao matched up against a fellow undefeated fighter in Rocky Palma for the third fight of his career. Although he only had two fights under his belt, Pacquiao moved up to six rounds against Palma.

It ended up being a unanimous decision for Pacquiao but Palma learned from the loss and still went on to have a respectable professional boxing career. The highlight of Palma's career was his reign as the World Boxing Council international minimumweight champion. He held the title for a full year before losing his belt to Juanito Rubillar.

Dele Desierto (4-0-0)

Late in the second round, Pacquiao cornered Dele Desierto and landed a right to the body. All of a sudden, Desierto turned his body around and walked away from Pacquiao, against the very principle of boxing, which is to protect yourself at all times. Luckily for Desierto, the referee stepped in to end the match before Pacquiao landed anything meaningful. It was Pacquiao's first stoppage win in his career.

Desierto turned his back completely from the sport of boxing, never stepping into the ring again.

Seung-Kon Chae (23-0-0)

Pacquiao's career gathered rhythm quickly as he won the OPBF flyweight title two and a half years after his professional boxing debut. He also secured his first world title late in 1998 against Chatchai Sasakul to claim the WBC flyweight belt.

Pacquiao would lose that title at the scales late in 1999 before deciding to move up to the super bantamweight division, skipping 115 and 118 pounds altogether. On June 28, 2000, he faced off against another undefeated fighter in Seung-Kon Chae of South Korea for the WBC international super bantamweight title.

As the South Korean was also a power puncher with 17 of his 23 wins coming via the short route, he came into the fight with guns blazing. Pacquiao weathered the early storm and then landed a short left uppercut that floored the challenger halfway into the first round. Chae beat the count but was still in wobbly legs, forcing referee Bruce McTavish to stop the fight.

Chae took a three-year hiatus after suffering his first loss and took on light opposition for his next two fights. He challenged for the OPBF featherweight title in 2004 but he fell short, leading to his retirement.

Nedal Hussein (19-0-0)

Pacquiao's next opponent after Chae was also against an undefeated fighter in Nedal Hussein in what was one of the toughest and dirtiest fights of his career. Pacquiao was knocked down by a stiff jab in Round 4 and got the benefit of a friendly eight-count by referee Carlos Padilla.

Hussein's toughness, along with his roughhousing, made it a difficult fight for Pacquiao up until the end was called in the 10th round due to a cut on the challenger's left eyebrow, which he and his corner protested vehemently.

Hussein bounced back nicely from the loss as he won his next 17 fights to set him up for a world title match against WBC super bantamweight champion Oscar Larios in 2004. The Australian lost the match via unanimous decision. Hussein's career had highs and lows after until he suffered a knockout loss to future world champion Takashi Uchiyama in 2007.

Emmanuel Lucero (21-0-1)

Pacquiao's last match before superstardom was against "The Butcher" Emmanuel Lucero in defense of his International Boxing Federation super bantamweight title in 2003.

The Filipino champion found it hard to decode his smaller opponent who crouched low and swung for the fences with overhand punches. Finally, Pacquiao saw an opening in the third round and landed a massive left to the side of Lucero's jaw. Unfortunately for the Mexican, he managed to keep his footing although he was clearly on wobbly legs. Instead of getting knocked down and taking an eight-count to recover, Lucero wobbled to the ropes, which forced the referee to stop the fight and rescue him from further damage.

The loss completely exposed Lucero as he suffered a downward spiral in his career. He only won five of his next 18 fights before retiring in 2013.

Jorge Solis (34-0-2)

From 2005 to early 2008, Pacquiao only fought Mexican foes in Erik Morales, Hector Velazquez, Larios, Marco Antonio Barrera, and Juan Manuel Marquez. After his second stoppage victory against the legendary Morales, Mexican fans were hoping that a young undefeated fighter would finally score one over Pacquiao, who was then the WBC international super featherweight champion.

Pacquiao initially struggled to deal with the length of Solis and even suffered a cut in the sixth round off a head butt. The inevitable finally happened in Round 8 as Solis was floored by a left uppercut but, to his credit, still managed to stand up at 9 before crashing back down for good a few moments later with a signature left straight.

Solis enjoyed some success later as the apex of his career was a stint as the interim World Boxing Association super featherweight champion from 2009 to 2010. He ended his career in 2011 after two failed bids at the WBA world title at 130, suffering technical knockout losses to Yuri Gamboa and Uchiyama.

An interesting note in this fight was that Miguel Cotto, who was then the WBA welterweight champion, was watching ringside. No one could have ever predicted that he'd lose via knockout to Pacquiao two years after.

Timothy Bradley (31-0-0)

It was the much-awaited rematch of their earlier battle where many thought Pacquiao won, but it was Timothy Bradley who got the decision. Desert Storm may have kept his undefeated record intact after his first brush against The Pacman but he would not get lucky twice.

Pacquiao out-landed Bradley en route to a clear unanimous decision. Bradley bounced back nicely as he picked up wins against Jessie Vargas and Brandon Rios to get another shot at Pacquiao. The completion of their trilogy led to an even more convincing win for Pacquiao as he scored two knockdowns en route to another unanimous decision.

It was also the last fight of Bradley's career as he transitioned to the mic booth soon after.

Chris Algieri (20-0-0)

After his first win against Bradley, Pacquiao took on another undefeated fighter in Chris Algieri who got the chance at the big time after scoring a split decision win against another Freddie Roach student in Ruslan Provodnikov.

Even though he had an impressive record, it was clear from the start that Algieri did not even belong in the same ring as Pacquiao. He was knocked down multiple times. He did manage to finish the fight on his feet, but took a 120-102, 119-103, 119-103 unanimous decision defeat.

Algieri still had a couple of high-level fighters after that, but he also lost via decision to Amir Khan and via technical knockout to Errol Spence. He has since moved back down to the super lightweight division where he currently reigns as the World Boxing Organization international champion.

Keith Thurman (29-0-0)

Among the formerly undefeated fighters to suffer their first loss against Pacquiao, only Bradley was able to win a world title after. However, that could change soon as it looks like Thurman still has a lot in the tank. At only 30 years of age, he has shown great humility in accepting the loss to Pacquiao and now looks to learn lessons from fighting one of the best to ever do it. Thurman will surely be in a lot of marquee fighters in the years to come.

The question now for Pacquiao is if he has one more left in him. Can he go up against another undefeated fighter and emerge victorious? With all the noise around a rematch versus Floyd Mayweather, the Pacman is surely hoping for another chance to soil Money's immaculate record.