Filipino legend Manny Pacquiao will face Timothy Bradley for the second time in April and his trainer Freddie Roach has provided his opponent with a warning.
After losing to the American in 2012, Pacquiao is looking for revenge and Roach warned Bradley about the rematch.
Roach was quoted by the PhilStar: "We have a great sparring waiting for Manny. He wants that title back.
"If Bradley thinks he's going to see the same compassionate Manny he saw the first time they fought, he is in for a big surprise."
Pacquiao has not stopped an opponent since Miguel Cotto in 2009. Since then, the eight-division world champion has gone on to win his next four bouts.
The 35-year-old is now a congressman in the Phillipines and is backed to run for the presidency in the future.
Roach, however, is relaxed and admitted that his fighter is training well ahead of his fight next month.
"We had a great camp in the Philippines and Manny, as usual, is way ahead of schedule in his conditioning, and very motivated. The real business begins for us on Monday at Wild Card," the 54-year-old said referring to his boxing facility in Hollywood, California.
Pacquiao has suffered two defeats in his last three bouts, losing to Juan Manuel Marquez in one of the most devastating knockouts in 2012 and Bradley via split decision - who many thought he actually beat.
He then returned to the ring in November and outclassed Brandon Rios in Macau, China. Speculation then began again about a potential fight with Floyd Mayweather but that was just false hope once again.
The rematch between the Fighting Pride of the Philippines and the Desert Storm will take place on April 12 at the MGM Grand in Las Vegas, Nevada. The two boxers will be fighting for the WBO Welterweight title.
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