Boro were nowhere near as bad as the scoreline suggests and on another day Turkish substitute Tuncay Sanli could have scored four.
"Tuncay caused them lots of problems, and he came in afterwards and apologised," said Southgate.
"When he lobbed the ball onto the bar you start to think it's not going to be your day. But he was a real threat and very bright. We didn't lose the game because of that."