Vietnam-born Howard Bach and Indonesian-born Tony Gunawan will be competing in the men's doubles event in badmitton for Team USA. Howard made history in 2008 when he and his doubles partner (Bob Malaythong) became the first Americans ever to make the quarter finals in their sport which is still not well known in the US. Howard and Tony were previously partners and made a splash with a 2005 world championship title.
Howard came to the US at the age of three and began playing badmitton at the San Francisco YMCA at the age of 5. He's now competing in his third Olympics.
Tony came to the US in 2002 as a foreign graduate student studying computer science - one of the STEM graduates so much in the news these days. But he couldn't compete with Tony in the Olympics until this year because Tony only got his green card in 2006 and wasn't able to naturalize until last year. Tony didn't just happen in to the sport as a student, however. He won the 2000 Olympic gold medal for Indonesia.
Best of luck, Tony and Howard!