Park brought the curtain down on a career that took him to the 2002 World Cup semi-finals and saw him become the first Asian to play in a UEFA Champions League final.
Park's industry, energy and work ethic made him a favourite of Sir Alex Ferguson during his time at Old Trafford and his performances in England and with Dutch side PSV Eindhoven helped raise the profile of Korean football around the world.
"I didn't cry about it yesterday, and I'm not crying about it today, that means I'm leaving with no regrets," he told a news conference at the Park Ji-sung Football Centre in Suwon, where he has a street named after him.
"I enjoyed playing football. I have achieved more than I have thought I would. I'm truly grateful for all the support I have received and I will live the rest of my life thinking how I can pay it back."
"I thought about getting an operation but even if I did it wouldn't mean the injury would be gone completely. Naturally, retirement was the option," he added.
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