"I knew that Manchester [United] loved me and that [David] Moyes supported the signing completely," he told GQ.
"We had a very pleasant afternoon. We spoke a lot about United's plan and he convinced me.
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"In the end, we verbally agreed to it. I'm not someone who thinks about what could have been.
"Yes, it was close. I was almost a Manchester United player, but it didn't happen."
Not one to regret his decisions, Kroos went on to conquer Europe time and again in Madrid, which he doesn't think would have been possible.
"I can say one thing with certainty," he said, "at Manchester United, I wouldn't have won the Champions League three times."