Thomas Grønnemark is the world's first throw-in coach and has worked with top teams across the world including at Liverpool under Jurgen Klopp.
The 45-year-old is also responsible for the world's longest throw-in and has competed internationally as a sprinter and a bobsledder.
He has also discovered the secret to a perfect throw-in - liquorice. The freelance coach works with around eight teams a season including the likes of Ajax, RB Leipzig, Liverpool, Genk, Flamenco.
There are others, but these do not wish to be named publicly. The season before Grønnemark joined Liverpool's coaching staff, they retained fewer than half of all throw-ins while under pressure (45.5 per cent) according to independent analysis, 18th in the league for doing
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