South Korean Park Ji-sung announced his retirement from soccer on Wednesday, bringing the curtain down on a career that took him to the 2002 World Cup semifinals and saw him become the first Asian to play in a Champions League final.

Park's industry, energy and work ethic made him a favourite of Alex Ferguson during his time at Manchester United and his performances in England and with Dutch side PSV Eindhoven helped raise the profile of Korean soccer around the world.

The 33-year-old, who called time on his international career after the 2011 Asian Cup, said he could not continue to play at the highest level because of knee issues but added that he was leaving the game without any regrets.

"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."