I've taken a new and exciting step in my life. You may have already read the news today: In the coming season, I'll be an Arsenal player.
I am proud and happy that Arsenal has offered me this amazing opportunity to become a member of Arsene Wenger's team.
I am very excited to join the team and promise that I will do my absolute best to repay the confidence you have shown in me. I look forward to my new home and the start of a new chapter with the Gunners #SeoKol