The pair's relationship has been big news since Monday's confirmation but Woods is now focused on trying to wrest golf's world No. 1 crown back from friend, rival and Nike stablemate Rory McIlroy.
Guan, who started playing golf as a four-year-old, claimed the world junior crown last year in San Diego by 11 shots on the back of a flawless first-round 63, featuring nine birdies.