Forward Park Chu-young's contract with Arsenal is about to expire and will not be renewed.
On its website on Thursday, the club said, "Arsenal can confirm that 11 players [including Park] will be leaving the club when their contracts officially expire on June 30."
The announcement came just a few hours before Korea was to take on Belgium in Brazil on Thursday.
Park will be homeless from Monday. He joined Arsenal in August 2011 through the summer transfer window.
For the past three seasons with the club, Park played only one game in the league, entering as a sub in a match against Manchester United on Jan. 22 2012.
Park briefly appeared matches for Celta Vigo in Spain and Watford in England's second-tier Championship on separate loan deals, but they were equally unimpressive.
Meanwhile, Korean national team manager Hong Myung-bo has been criticized for Korea's failure to advance to the round of 16, as he was hell-bent on selecting Park despite the fact that he spent most of his time warming the bench at Arsenal, and allowing him to play more minutes in this year's World Cup than he had in the whole of the last club season.