Soccer legend Diego Maradona is in China to support the Argentine soccer team and claims he would pass a dope test, Sky News has reported.

Argentina's football star Diego Armando Maradona waves to fans as he attends the men's preliminary round group A basketball match Argentina vs Russia, on August 18, 2008 at the Olympic Basketball Arena in Beijing, as part of the 2008 Beijing Olympic Games. [Agencies]

He plans to watch the men's final at the Bird's Nest stadium on Saturday and has high hopes his old team will be there. He added it is his country's only real chance of a gold medal.

The formerly troubled 46-year-old star has battled with addictions to alcohol, cocaine and other drugs for the past 10 years.

"I had very hard moments, but now I wake up every morning lucid and willing to call my daughters. I'm great."

Argentinean striker Sergio Aguero is the boyfriend of Maradona's younger daughter Giannina.