Manny Pacquiao has undergone hisĀ first drug test in the run-up to his fight against Floyd Mayweather.

The Filipino was given a random test on Saturday, only two days after the US Anti-Doping Agency revealed that Pacquiao and Mayweather had agreed to Olympic-style testing.

A report on GMA News in Pacquiao's homeland detailed that he had given blood and urine samples to a medical technician that made an unannounced visit to Pacquiao's training area in Los Angeles.

Pacquiao agreed to the extra doping protocol as part of the contract signed to fight unbeaten Mayweather in Las Vegas on May 2.

Both Mayweather and Pacquiao must make themselves available for random blood and urine tests and provide US anti-doping officials with travel itineraries. They will also be tested after the fight.

Samples will be examined for human growth hormone (HGH), erythropoietin (EPO) and other substances.

Drug testing was an issue in 2010 when talks for a showdown between the two failed. Mayweather accused Pacquiao of using performance-enhancing drugs. Pacquiao denied the claim and sued Mayweather, a dispute the two settled out of court.