Pick your favourite Roy Keane moment. The header against Juventus? The tunnel clash with Patrick Vieira? The bone-crunching challenge on Marc Overmars at Lansdowne Road?

All worthy choices that complement hisaggressive, combative warrior persona. Butthat was Version 2.0. Keane: Origins delves into the inexplicable storyof what came before. Focusing on the period between 1988 and 1993, it charts Keane's journey from an economically-ravaged Cork to a spectacular three-season spell under Brian Clough at Nottingham Forest via a memorable stint on a government-funded training scheme and briefspell in the League of Ireland.

With contributions from former team-mates, coaches and those who knew him best, Keane: Origins examines a largely over-looked,under-appreciated and unheralded time in the legendary midfielder's career thatset him on the path to immortality.