Manny Pacquiao defended his WBO welterweight title by the side of the sold-out MGM plot Arena inside Las Vegas, defeating Juan Manuel Marquez by majority decision.Both unit went toe-to-toe right through the 12-round fight Saturday night with neither getting knocked down on the print.The fight went down to the Nevada judges scorecards with Dave Moretti scoring it 115-113, Robert Hoyle 114-114 and Glenn Trowbridge 116-112.in the manner of the decision, Marquez gone the ring, apparently upset by the ruling.Roach on Pacquiaos stardom statusThis was the third clash connecting Pacquiao and Marquez. The originally bout happening 2004 was scored a bring in, while Pacquiao won a controversial split decision happening the rematch four years soon after.