• Floyd Mayweather Jr and Manny Pacquiao

Floyd Mayweather Jr and Manny Pacquiao (Photo : REUTERS/Lucy Nicholson)

Buckingham Palace welcomes another royal baby as Prince William's wife Kate Middleton, the Duchess of Cambridge, gave birth to a baby girl, a day prior to the highly anticipated "The Fight Of The Century" between Manny Pacquiao and Floyd Mayweather Jr.

Weighing 8 pounds and 3 ounces, the royal baby was born at St. Mary's Hospital, Kensington Palace in London, CNN reported.  

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Earlier this year, Pacquiao and his wife went to London and spent some time with Prince Harry, the younger son of Charles, Prince of Wales, and the late Diana, Princess of Wales, GMA Network reported.

Prince Harry is said to be in Las Vegas, Nevada on May 2, Saturday, to watch "The Fight Of The Century" or "Battle For Greatness" at the MGM Grand Garden Arena as Buckingham Palace is expected to be rooting for Pacquiao over Mayweather Jr.

While Pacquiao is currently the eight-division world champion, Mayweather Jr.  is an undefeated five-division world champion.

As appointed by the Nevada Athletic Commission, the in-ring referee in the highly anticipated fight is Kenny Bayless, who has officiated seven of Pacquiao's fights and five of Mayweather Jr.'s fights in the past.

Serving as the judges are Burt Clements, Glenn Feldman and Dave Moretti.

Bayless will be paid $25,000 as the referee while Clements, Feldman and Moretti will each be paid $20,000 as judges.

Valued at $1 million, the belt for the winner of the fight newly created by the WBC contains the faces of both Pacquiao and Mayweather Jr. along with the faces of boxing legend Muhammad Ali and former WBC president José Sulaimán.