Rory McIlroy is in a share of twelfth place after shooting a one-under-par 70 at the Korea Open.
The former world number one sits three shots off the lead at the Woo Jeong Hills Country Club after carding four birdies, a bogey and a double bogey in the opening round.
Jang Ik-jae is currently leading the One Asia tour event after shooting a four-under 67.
Jang claimed birdies on the fifth and 12th with an eagle on the 10th seeing him complete the round in 67, four under par, to finish one stroke ahead of Kang Sung-hoon, Yoon Jung-ho, Hoon Min-kyu and Eric Mina who were tied for second.
McIlroy has not played since failing to qualify for the 30-man field in the PGA Tour's final play-off event in September.
The Korea Open marks the start of a month-long tour of Asia for the world number six that is guaranteed to earn him more than €3.5million in appearance fees after a disappointing year.