"Manchester United, City, Chelsea, Liverpool - a lot of clubs were interested," he told FourFourTwo. "But the most important thing as a pro is taking things a step at a time and not rushing to the top too quickly.
"Because once you get there, where do you go next?
"I believe the right timing is important, and it was the right moment to be at Bayer Leverkusen.
"They are a tremendous club with so much history.
"A lot of good players have come from there; they can get into the Champions League and are always doing well. So why not them?
"It was the perfect move for me and I'm happy I made it. My focus isn't really on moving anywhere yet.
"I'm just about what's happening right now rather than what could happen in the future. I'm still learning."