Karius has joined Besiktas two season loan and discussed his Kiev performance at his presentation.
"If you consider the circumstances – with the serious (head) injury as well – then you don't know in what way it affected me, you have to move on," Karius said.
“It was an unlucky day, but it's football. I don't think a lot of players reach a Champions League final. If you look at how many goalkeepers in the league reach a Champions League final, I don't know. So, it was a great achievement.
“Unfortunately, on the day we were unlucky and it wasn't the best performance. But there was a lot of things that came together, it's in the past now and I look forward to the future."