Andre Schurrle completed his move to Wolfsburg on transfer deadline day
The German World Cup winner completed his £24m move on transfer deadline day, allowing the Blues to recruit Juan Cuadrado from Fiorentina.
And Schurrle, 24, admits he was concerned the two club's would not agree upon a fee, despite having already agreed personal terms with Wolfsburg.
"Towards the end, everything did draw out somewhat, which was stressful for me and really frayed my nerves," Schurrle said. "Now I am finally at VfL Wolfsburg and I am very, very happy about that.
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Everything did draw out, which was stressful for me
Andre Schurrle
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"It wasn't my first transfer, so I was aware that these things can take longer than expected before all parties have agreed on the terms.
"That considered, I was a little tense, because I really wanted to make the move to Wolfsburg.
"Despite that though, I was always pretty convinced that it would work out in the end."