The stars continue to roll in for Manny Pacquiao's workouts in advance of his April 12 rematch with WBO welterweight titleholder Tim Bradley, who dethroned Pacquiao by split decision in June 2012.

During a Monday workout at trainer Freddie Roach's Wild Card Boxing Club in Hollywood, California, Pacquiao was visited by former champion Julio Cesar Chavez Sr., retired ex-beltholder and former foe Marco Antonio Barrera and actor Aaron Eckhart, the latter of whom is "doing research for a film role as a trainer," according to publicist Fred Sternburg.

Falling by 11th-round knockout and unanimous decision to Pacquiao in 2003 and 2007, respectively, Barrera was there with Chavez as a reporter for a Mexican outlet, according to Sternburg.

"They were there to interview Manny for TV Azteca," said Sternburg. "They had a lot of laughs and were very impressed with Manny's workout, which lasted three hours including 13 rounds on the mitts with Freddie Roach."

Earlier this month, Pacquiao was visited on the same day by legendary musician Bob Dylan and singer, songwriter, actor and author Ashanti.

Dylan, 72, author of a ballad entitled "Hurricane" about former middleweight boxer Rubin "Hurricane" Carter, "told Manny how much he enjoyed watching him fight and Manny told him how humbled he was that he came over to watch him spar," said Sternburg.

Ashanti, 33, has accepted Pacquiao's request to sing America's national anthem prior to the Bradley rematch, broadcast on HBO Pay-Per-View at the MGM Grand in Las Vegas.

During two fights over the course of 2012, Pacquiao lost to Bradley before falling by sixth-round knockout in December to Juan Manuel Marquez, against whom Pacquiao is 2-1-1. Pacquiao won his most recent fight in November by unanimous decision over Brandon Rios.

In his past two fights, Bradley rose from a 12th-round knockdown to unanimously decision Ruslan Provodnikov in March 2013 and then won a split-decision over Marquez in October.

The WBO has declared that the winner of Bradley-Pacquiao II must face that between Marquez and Mike Alvarado, who will fight on May 17.

Photo / Chris Farina-TOP RANK