Manny Pacquiao is prepared for anything Timothy Bradley will bring to the ring when the pair clash at the MGM Grand Garden Arena in Las Vegas on June 9.

Pacquiao will defend his WBO welterweight belt and a 15-bout winning streak when he faces 28-year-old Bradley (28-0 12KOs), the current WBO light-welterweight champion.

"I don't know what Tim Bradley will bring in the ring on the night but we will be ready for whatever he brings," he said.

"I know he will be 100 per cent conditioned for the fight. We have practiced every kind of fight in the ring with four different sparring partners.

"In our training now, we've started to do different techniques and movement and boxing and fighting toe-to-toe.

"Bradley is a different type of fighter and we don't take this fight lightly. We have trained hard for Bradley because he is the type of fighter we cannot underestimate. Tim Bradley is undefeated and he is a champion."

Pacquiao, 33, laboured to a points win over an aging Juan Manuel Marquez last time out in November and Bradley believes his opponent can certainly be beaten.

"He couldn't stop a 38-year-old [Juan Manuel] Marquez, so he's definitely not going to stop a 28-year-old like myself," said Bradley.

"They may think that Marquez just has Manny's number, but whatever Marquez can do, I can do 10 times better.

"He's great at counter-punching, and I'm devastating at counter-punching. My counter-punching ability is unbelievable. I beat most of my guys on counter-punching. It's affective aggressiveness with counter-punching.

"This guy is not invincible. This guy is beatable. I'm going to prove it to everybody ...That's my main focus - follow my game plan and dominate.

"Regardless of what his track record says, or whatever, he's going to have to show me that he's better than me, and that's the bottom line."