Manny Pacquiao
Pacquiao was involved in his first sparring day on TuesdayReuters

The countdown for the mega event on 2 May has already started with just under 45 days left for the fight of the century between Manny Pacquiao and Floyd Mayweather at MGM Grand in Las Vegas.

Both camps have started their rigorous training with their respective trainers. The Filipino also started his first day of sparring as he fought two different partners.

The American is already said to have started his sparring, where several reports last week suggested that Mayweather knocked out his sparring partner with a body shot, though there was nothing dramatic for Pacquiao against his sparring partners.

But Pacquiao did state that his sparring partners gave him a good work today. "My sparring partners gave me good work today. They were perfect for testing the strategy Freddie and I have developed to beat Floyd Mayweather. I was very happy with my stamina and speed," Yahoo quoted the Filipino as saying.

Both the boxers are fighting these sparring partners in order to get into the perfect shape when they take on one another at MGM Grand.

Both camps seem to have done their homework well with Mayweather's camp keen to have a southpaw (stance) as a sparring partner. Pacquiao is said to be a southpaw.

On the same lines, Pacquiao's camp has tried to find out sparring partners, who has similar qualities to that of Mayweather.

So, expect both the boxers to be well prepared for the bout, which has been one of the most anticipated ones in boxing history.

Freddie Roach, Pacquiao's trainer was a very happy person after his fight with the sparring partners. "Manny looked so fresh today. I'm very happy with what he showed me," Roach said.

"You couldn't tell he had been away from the ring since the Algieri fight in November. Manny is on fire in the gym."

Roach has been very confident when it comes to defeating Mayweather, as he has said it a number of times.

"When Manny threw out the first punch it felt like opening day of Irish Spring Training," Roach joked. "I am confident May 2 will be celebrated for years to come as St Manny's Day -- the day he drove Mayweather out of boxing."