Filipino boxing hero Manny Pacquiao is on the brink of achieving a “sixth” world title, this time in the 140-pound division, as he challenges International Boxing Organization (IBO) and the Ring Magazine junior welterweight champion Ricky Hatton.

The pride of General Santos City and of the whole Philippines as well has already won the World Boxing Council (WBC) lightweight, the WBC super featherweight, the International Boxing Federation (IBF) super bantamweight, and the WBC flyweight world titles.

He also won an “extra” world title when he copped the lineal featherweight championship by beating Marco Antonio Barrera in 2003, though he never held a sanctioning belt in that division.  

According to Wikipedia, the lineal championship is an abstract world championship title held at some moment in time by a boxer universally acclaimed as “the best in the class”.

If Pacquiao beats Hatton, he gets another lineal title in a fourth division.

“In other words, he'll be considered the ‘real’ champion in a fourth division, not just a mere titleholder, the way he was when he claimed his junior featherweight belt and lightweight title,” explained analyst Dan Rafael in his article posted on ESPN.com.

Boxing historian Bert Sugar said Pacquiao will become one of the boxing greats if he wins a junior welterweight title.

“Even with all the belts, he's still the lineal champion in so many weight classes. I make him out to be the greatest Asian fighter of all time, and conceivably, one of the greatest fighters of all time if he can carry this off,” said Sugar.

Pacquiao said a win over Hatton is very important to him.

"It is very important for me to win [titles] in six different divisions for the people of my country," said Pacquiao. "Being a six-division champion, if that happens, people will want to put my name in boxing history, and that will be my legacy."

Even Oscar de la Hoya, who was considered the lineal champion in three weight divisions, is aware of what Pacquiao is trying to accomplish.

"He's in a position now where he can make history," said de la Hoya, whom Pacquiao beat last December. "It's not easy to jump six weight classes. It's not easy at all. It's probably the most difficult task that any fighter can have. I've always said it was more difficult than just being world champion for 10 years at one weight class."

Mayweather Jr. set to return?

As tension for the Pacquiao-Hatton fight continues to escalate, rumors of the "unretirement" of former pound-for-pound king Floyd Mayweather began to swirl.

Dan Rafael cited sources as saying that Mayweather is close to sealing a fight deal with Pacquiao's nemesis, Juan Manuel Marquez of Mexico. as his return match after springing back from retirement.

"The deal was finalized Friday afternoon following a flurry of conversations over a six-hour period, a source said," said Rafael.

Mayweather is reportedly set to announce his return to the ring the same day Pacquiao and Hatton will be fighting.

The former pound-for-pound king, who remains undefeated in 39 fights, has been away from boxing action for more than 17 months.

Mayweather might face Pacquiao should the Filipino win over Hatton.