South Korean midfielder Ki Sung-yeung's celebrity wife, who is eight years his senior, is expecting their first baby, her management agency said Sunday.

Han Hye-jin, a South Korean actress in her 30s who wed the Swansea City midfielder in 2013, is in the "early stages of her pregnancy," Namoo Actors said, without elaborating on how many weeks in she was.

Their wedding attracted much attention from the South Korean public as older-woman-younger-man relationships are just gaining traction in the entertainment business.

Earlier in the day, South Korean time, the 26-year-old captain of the South Korean men's national football team was seen mimicking the thumb-sucking of a toddler after scoring at a 2014-2015 Premier League match against Manchester United. The goal ceremony fueled speculation among South Korean Internet users as to whether his wife was pregnant.

More South Korean men have been marrying older women in recent years. In 2013, a total of 41,300 men married women who were older, a record since the data was first collected in 1981. (Yonhap)