Juergen Klopp admits he was surprised when Shinji Kagawa became available in the summer transfer window.
Kagawa was unable to gain the form, fitness or consistency at United which saw him star in the Bundesliga with Dortmund but Klopp was delighted to have him back at the Westfalenstadion.
Kagawa made his second debut for Die Schwarzgelben on the weekend and it was a complete success as he scored and provided an assist in the 3-1 home win over Freiburg which prompted words of praise from Klopp.
"I was kind of surprised Kagawa was on the market again," said the Dortmund boss.
"The only thing you want at that stage is results and titles.
"Kagawa's second year at United was the first year of the new coach, so that's also all about results.
"Then there was a third manager. So we saw the chance to sign Kagawa and we took it. Kagawa was sensational against Freiburg."
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