He has a mental picture of leading Rovers out at Wembley hand in hand with one of his four grandchildren and it could be a difficult team selection between a girl and three boys.
His dream is all the more poignant in light of the heart surgery that led Allardyce to question his future in the game and confront the possibility that he would never have another chance to lift a trophy at the famous stadium.
Head to head: Allardyce knows he faces a tricky task in beating Martin O'Neill's Aston Villa en route to a dream Wembley Final
Big Sam, 55, has twice been a Wembley loser, as an unused substitute with Bolton in the Freight Rover Trophy final against Bristol City almost a quarter of a century ago, and as a manager when Wanderers lost an FA Cup semi-final to Villa on penalties in 2000.
When Bolton overcame Villa to reach the Carling Cup final six years ago, he walked out at Cardiff's Millennium Stadium with his grandson 'Little Sam'.
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