article_snippet: Mayweather (left) and Pacquiao meet in a long-awaited mega-fight on May 2 at the MGM Grand in Las Vegas .
article_snippet: Mayweather arrives in the arena ahead of the glitzy press conference in Los Angeles on Wednesday night .
article_snippet: Pacquiao, a resounding underdog for the fight, gets Mayweather own rousing reception on entry for the appearance .
highlights_snippet: The world's two best fighters meet on May 2 at MGM Grand Garden Arena .