Video: Manny Pacquiao claims he has it all to prove in rematch against Timothy Bradley on 12 April

WBO welterweight clash takes place in Las Vegas next month

Manny Pacquiao (L) and US boxer Timothy Bradley Jr back in February (Getty Images)

Manny Pacquiao is taking nothing for granted in his hotly-anticipated rematch against Timothy Bradley in Las Vegas on 12 April, claiming that he has "to prove he can still fight".

The Filipino suffered a shock defeat by the unbeaten American in their first meeting back in June 2012, losing his WBO welterweight title by split decision, but the 35-year-old says he is not motivated by revenge, he just wants to prove his worth.

"I don't think of vengeance or revenge," he said. "I have to prove that I can still fight."

Pacquiao was victorious in his last bout against Brandon Rios in November, his first win after back-to-back defeats.

In Pacquiao's corner will be his usual trainer Freddie Roach, who says that they would love a knock-out, but they won't be taking the risk of going out all guns blazing to look for one, as Pacquiao found to his cost in his sixth-round stoppage defeat by nemesis Juan Manuel Marquez in December.

"We'd love a K.O but we can't get looking for one," Roach cautiously revealed. "If it happens, if happens...we'll take it round by round."