Enjoyed his first PGA Tour success for seven years in July 2018 when he stormed to a five-stroke victory in A Military Tribute at The Greenbrier.
It came just a week after he had secured a place at Carnoustie thanks to the world rankings, following finishes of fourth, fifth and sixth during his previous five tournaments.
Na's family emigrated from South Korea to the United States when he was eight years old. At 17 he decided to turn professional and a year later, just after his 19th birthday and by then an American citizen, he became the Asian Tour's youngest-ever winner when he captured the Volvo Masters of Asia in Malaysia.
His dream of a PGA Tour win came true in the 2011 Justin Timberlake Shriners Hospitals for Children Open - six months after taking 16 on one hole during the Texas Open.
He has also been in three play-offs, but lost them all – to Geoff Ogilvy in 2005 at the Chrysler Classic of Tucson, to Hideki Matsuyama in 2014 at the Memorial Tournament and to Emiliano Grillo at the 2015 Frys.com Open.
His best major finish was seventh in the 2016 US Open.