David Beckham told a news conference in China: "I'm very proud to be an ambassador and help the game here from the very young ages up to the professional level.
"I'm very proud and thankful for this opportunity and I look forward to being part of this project."
More top news
Weight of people trying to sign caused government petition to website to crash as Europhiles try to force a rerun of the EU vote.
A mother whose young daughter died after allegedly "shooting herself in the face" has been charged with murder.
Hundreds hit the streets of some of England and Scotland's biggest cities in protest over the "anti-immigration" tone of the Brexit campaign