The current Championship table-toppers were asked by the Premier League giants if they knew anything about Australian international Aaron Mooy.
Terriers fans knew little about Mooy when he first arrived at John Smith's Stadium but are delighted the Socceroos star is among their ranks, having impressed greatly in five league matches which has seen the West Yorkshire outfit start the new campaign without defeat.
Regarding how the temporary deal came to fruition, Huddersfield's Head of Football Operations, Stuart Webber, told Tribalfootball: "We watched him a lot remotely while he was in Australia,"
"Having Jason (Davidson) in the international squad, we knew him from their as well and our recruitment analyst, Luke England, had done a lot of statistical work on him from the A-League as well. He came up really highly in that.
"When I was at Liverpool, Gary Worthington (Head of Player Recruitment at City) was my opposite number as Head of Academy Recruitment at City and I had a good relationship with him, and he called up.
"He said: 'Listen, we are signing this player form Melbourne City, do you know him?'. And we knew him well and they were looking for a club to place on him loan next season.
"They said he was going to play against England in a friendly at Sunderland (in May), and to try and watch him again, but I already gave Gary some comfort by telling him that we've actually been following him.
"Not realising that he had signed for Man City had blown us out of the water really.
"Then Brian Marwood got involved and he brought Aaron over to see myself, the chairman and David Wagner. We had a good 3 or 4 hours with both Brian and the player because Man City were keen to send him to the right club, not just any club.
"So we thought about how he would fit in, how he would operate in our style of play, how we would develop him and how we could create opportunities for him.
"We had to sell it to both Aaron and Man City as he had a couple of very attractive options but he decided that this was the place for him.
"But the minute Man City picked up the phone and asked the question, 'did we know him?', it was a really easy one for us because we knew him quite well, we aren't starting from scratch."