Macau -  Brandon 'Bam Bam' Rios put the heat on his sparring partner today, moving forward and blasting hard hooks, particuarly to the body on Thursday at the Venetian Macau.

"Rios was explosive today," said Erick De Leon, the former U.S. National champion who went six rounds of heavy sparring.

Rios had a four hour workout, starting with sparring six rounds, doing the mitts with chief trainer Robert Garcia six rounds, striking the heavy bag, doing floor exercises and then remaining to do "fitness exercising" with his trainers.

After the third hour, Rios turned to Garcia and said "what's next?"

"We keep working, Brandon. This is how we are going to beat Pacquiao," Garcia said.