Preliminary work a few years ago, by Robin Baker and Mark Bellis of Manchester University in England, suggests that as many as 10% of children may not have been fathered by the man who believes he is the father.

ECONOMIST: A survey of the human genome

Thomas' agent has been in discussions with Cheltenham manager Mark Yates about a new deal, and Baker says the club will do all they can to persuade him to stay.

BBC: Cheltenham Town offer new deal to Wes Thomas

His involvement in the deaths of Richard Lollar and Jacinth Baker after a Super Bowl party in Atlanta in January 2000 is a black mark on his career, and for a time he faced murder charges for it.

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