Tennis legends Pete Sampras and Andre Agassi renewed their age old rivalry on the court during a charity match to raise money for the Haiti relief fund.

The tennis legends joined Roger Federer and Rafa Nadal in raising cash for Haiti earthquake victims.

They have been bickering since Agassi claimed in his autobiography that Sampras was a cheapskate - citing an occasion when he tipped just one dollar for valet parking.

The two greats cannot keep their simmering rivalry hidden, as it had been eight years since they last faced each other on a tennis court.

But within a matter of minutes of the Hit for Haiti night at the BNP Paribas Masters in California at the weekend, they were almost coming to blows.

Agassi was playing with Nadal and Sampras was teamed up with Federer for one set of doubles in front of a packed house of 16,000, the Daily Express reports.

All the players were wearing microphones, which gave Agassi the opportunity to crack a few gags and get the audience going.

As Sampras simply got on with the business of forehands and backhands, he was encouraged to lighten up a little. Sampras duly responded by imitating Agassi's pigeon-toed walk and his fidgeting and fussing at the baseline.

Agassi hit back by showing off his impersonation of Sampras; turning out his pockets and claiming to have no money.

Sampras was clearly livid and served a thunderbolt directly at Agassi. "It's OK, it's OK," Agassi said as he dodged the ball. "It's better than being a valet driver and you pulling up."

By this stage, Federer and Nadal were looking distinctly uneasy while the crowd was not Nadal was fortunate enough to miss most of the snide remarks and put-downs.

"I didn't understand anything," he said. "No, that's the truth. They speak very fast for me. I was very happy I didn't understand. I think they try to have fun there. "

They were obviously having so much fun that neither Sampras nor Agassi spoke to the media after the fundraiser and both beat a hasty retreat from the venue. (ANI)