Southgate said: “Dong-Gook needs time to adjust. He’s not even had 90 minutes in the reserves yet.
“I will be patient in the way that I bring him through and he will have to be patient too.
“He’s a player with a lot of ability but it’s not going to happen for him overnight. Everything is different here, the football, the pitches and the culture.
“We have a lot of faith in Dong-Gook but you have to look at the whole picture and do what is best for him. After all, even Dennis Bergkamp and Thierry Henry needed time to adjust to the Premiership.”