He is now on his last circuit, all of which will culminate at the Arthur Ashe stadium in a few weeks from now. Agassi will have to learn to live without tennis, and tennis without him.
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'This has been my life,' he said on Tuesday.
'It's not just saying goodbye to the sport, to a business, to hitting a tennis ball. It's saying goodbye to all the people you've done this with, from the fans to the sport itself to your peers.'
'You've lived something on so many different levels and to walk away from that, I don't take that lightly at all.'
For all of his exploits in tennis, the real reward for Agassi has been the love from his audience.
The performer in him has always upstaged the player, inspiring thousands in ways he doesn't even fathom. His fans come in different colours and ages, each of them swelling his legend with what they take away.
Eight Grand Slams over 20 years and an Olympic gold in Atlanta. Agassi's game has withstood the test of time. History will tell how long his legacy lives on, as he prepares to step into the next phase of his life.