There are very few secrets in football. Every shot, pass and tackle is logged by dozens of scouting platforms, giving clubs access to more information than they can shake a stick at.
Yet there are some who slip under the radar of even the most attentive eyes.
When Thomas Tuchel was appointed England manager last October, he had a working knowledge of virtually every player - with one notable exception.
Tuchel had seen flashes of Morgan Rogers this season and last, but it was not until he settled into his seat at Villa Park last January, ahead of Aston Villa’s Champions League clash with Celtic, that he realised what the fuss was all about.