Ex-Pacquiao strength coach Alex Ariza kicks Freddie Roach in gym altercation

SHANGHAI, CHINA - JULY 31: Freddie Roach (L) and Manny Pacquiao (R) chat at a press conference on July 31, 2013 in Shanghai, China. (Photo by Kevin Lee/Getty Images)

Four days before the much-awaited Manny Pacquiao-Brandon Rios welterweight clash, things are already heating up between both fighters' camps outside the ring.

Alex Ariza, the former strength and conditioning coach of Pacquiao, was caught on video kicking Pacquiao's longtime trainer Freddie Roach in a gym altercation.

Rios' own trainer Robert Garcia was seen on video telling Roach, "Get the f*ck out of here!" after the two bumped into each other in the same gym. "It's eleven o'clock," Roach replied stating that it was already their time to use the facilities. According to him, Garcia had the gym from 9 to 11 am and he was asking them to leave but he was met with hostility.

When Roach approached Ariza, he was met with a kick to the chest that sent him back. The American trainer then called for security. One member of Garcia's group threw a punch at one of Roach's assistants but the violence did not escalate.

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After the two were separated, they continued to yell at each other. Ariza shouted "Let's go!" while Roach urged him, yelling "Come on!" Things turned more personal thereafter as Ariza mocked Roach's movements, which are caused by Parkinson's disease.

Ariza and Roach worked hand in hand to train Pacquiao for some of his fights but the two never had a good working relationship with each other. Roach, with Pacquiao's approval, fired Ariza prior to their preparations for the fight against Rios.

Garcia then took Ariza in as Rios' conditioning coach.

"I'm sorry I took all the credit for your wins," Roach said sarcastically as he felt the conditioning coach did that to him in Pacquiao's last wins.

Before Pacquiao's fight with Antonio Margarito who also trained under Robert Garcia, Rios also mocked the American coach on video by slurring his speech. Pacquiao then proceeded to settle the score as he rearranged the much bigger Margarito's face en route to a unanimous decision victory.

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