There’s going to be no feeling-out first round for Manny Pacquiao when he collides with Juan Manuel Marquez in their March 15 rematch in Las Vegas.

“We might just jump on this guy again,” trainer Freddie Roach told boxingtalk.net in an interview that was ran yesterday. “We are going to jump on him with both hands this time.”

Pacquiao had so much success in the first three minutes of the fight when he sent Marquez down thrice with his TNT-laden left hand that Roach is going to order the 29-year-old Filipino southpaw to start fast and furious once again.

Marquez, however, wisely evaded the same punch and managed to counter-punch his way to a 12-round split draw.

Despite his optimism, Roach is not counting out the 34-year-old Marquez, who will be staking his World Boxing Council (WBC) super-featherweight crown before an expected sellout crowd at the 12,000-seat Events Center inside Mandalay Bay.

“Yes, we negotiated the final details of the Marquez fight. We signed the contract over there. We also discussed future opponents, but I don’t want to look ahead too much because we have a tough fight ahead of us,” Roach said when asked by scribe Brad Cooney about his recent visit to the Philippines.

Roach expects Pacquiao to report for work at the Wild Card on Vine Street in Hollywood in two weeks time.

Marquez, meanwhile, anticipates a rough outing against Pacquiao that he even decided to begin light training before the holidays in Mexico City.

Pacquiao parades a 45-3-2 win-loss-draw card with 35 knockouts, while Marquez totes a 48-3-1 ledger also with 35 wins inside the distance.

Should Pacquiao settle the score and win convincingly against Marquez, Top Rank big boss Bob Arum will pit him with David Diaz, the reigning WBC lightweight (135 lbs) king in June or July, before a ballyhooed battle at 140 lbs with British bulldog Ricky Hatton sometime in November.

But, as Roach insists, Pacquiao has to take care of Marquez first.