Swansea have confirmed that Ki Sung-yueng will not be ready for the start of the new season after undergoing surgery on his injured knee.
The South Korea international sustained the injury last month in a World Cup qualifier against Qatar and has remained in his homeland to go under the knife.
? Ki set to miss the start of the season through injury.
— Swansea City AFC (@SwansOfficial) 3 July 2017
Ki will continue his rehabilitation back home before returning to Wales after Paul Clement's squad have completed their pre-season tour to America.
The 28-year-old midfielder will miss the trip to Southampton on the opening day of the 2017/18 Premier League campaign, but is not expected to be sidelined for too long.
"The club's medical team have been out to South Korea to assess him following the operation," read a statement from the Swans.
"Although no date has been set yet for his return to action, the injury is not expected to keep him out long-term."
Ki made 23 top-flight appearances for the Welsh outfit last term as they went through four managerial changes and narrowly avoided relegation to the Championship.