CHICAGO, Illinois — Since most of the fighters that Manny Pacquiao had faced recently were righthanders, the Filipino boxing sensation will have to make some adjustments when he faces his fellow left-hander David Diaz.

Pacquiao’s trainer coach Freddie Roach, however, said during a joint press conference held at the Lalo’s Restaurant — the restaurant formerly owned by Michael Jordan — that there is nothing to worry about it.

“I do not anticipate Manny having a problem fighting a southpaw. Manny will have to make adjustment,” said Roach.

Pacquiao, the World Boxing Council super featherweight champion, said he had faced at least two southpaws in the past and this will be his third time that he will be facing a left-handed boxer.

Pacquiao, 29, said he plans to learn more strategy in facing a southpaw.

“And both of us are southpaws. And it will be a good fight because this is the third time for me to fight a southpaw. I think it’s hard for both of us. But I will try to make people happy. It is a big honor for my country. I will do my best.

For his part, Diaz, holder of the World Boxing Council lightweight champion, did not show any concern that he will also be facing a southpaw in Pacquiao.

In fact, he’s confident to win the fight.

In his last two title bouts, Diaz, 31, both faced right-handers — Jose Armando Santa Cruz and Erik Morales — and he beat both of them.

“This will be an all-out war between Manny and myself. Manny is a straight bull fighter as I am. We will both go at it. But the only thing that will happen is that I am going to win the fight.”

Diaz said that if he beats Pacquiao, the return bout will be in Chicago, and probably the third fight will be in the Philippines.

Diaz predicts the fight will last the distance and does not mind being an underdog.

“I expect to be 100 percent (healthy during the fight). As you see, (Manny) has been tearing everybody up in the scene. He is trying to take my title (away) and I am going to stop that,” he said.

Diaz said he does not like the promotional activities because it is interfering with his work outs.

From Chicago, Diaz and Pacquiao are scheduled to fly for San Francisco, California to hold another press conference and mix with the Mexican and Filipino population, like they did in Chicago.

Pacquiao did not make any prediction about the bout.

“I will do my best,” he said with a smile.

Jim Strickland, Diaz’s manager, said the upcoming fight between Pacquiao and his ward is one terrific fight because both are solid puncher.

“They are not the type like Leroy Jones or (Floyd) Mayweather, or some great naturally gifted boxers. Manny is fast and strong. If Manny hits with three combinations, we are going to hit with four combinations. If he hits us hard, we will hit him harder. That’s our style and we thank Manny for giving us this opportunity,” he said.

After the press conference, the boxers motored several blocks south to Federal Plaza on the block of South Dearborn, Adams and Jackson for a pep rally with their fans, mostly Mexicans and Filipinos.