Sungjae Im withdrew prior to his opening round in the CJ Cup Byron Nelson because of illness, the PGA Tour announced Thursday morning.
Im, a CJ ambassador, was scheduled to be part of the marquee group that also included defending champion Jason Day and local favorite Jordan Spieth.
The 26-year-old South Korean won last week in his native country, defending his title at the KPGA Tour’s Woori Financial Group Championship.
Im was replaced in the field by S.Y. Noh. A year ago at this event, Noh opened in 60 at TPC Craig Ranch before tying for 74th.
