John Keehan is gambling on four of his grandsons playing League football.
He has been in touch with bookies to find out what odds they will give him.
"I am going to have a bet on the four of them to play in League football at the same time," said Keehan.
"It has only happened once in the last 60 years with the Allens, Clive, Paul, Martin and Bradley."
Keehan's grandson Michael Standing plays for Albion's First Division rivals Bradford.
The former Seagulls schoolboy has been joined at Valley Parade by his 17-year-old cousin Kevin Keehan junior, the son of Albion's commercial manager.
John Standing, Michael's 15-year-old brother, is on trial with Nottingham Forest this week.
Joe Keehan, Kevin junior's brother, is also on trial at Gillingham.
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