WIGAN Athletic tipping into administration is sending shock waves through lower league football at a time when more and more business casualties of the coronavirus are gradually emerging. Wigan, the first domino to collapse due to the virus, may yet be bought and saved from extinction, but nobody in football should be complacent about the situation. The fall of a club that seven years ago was in the Premier League and had just won the FA Cup is a sad story with a very clear warning. Wigan’s tenure in the Premier lasted an astonishing eight years and ended with that FA Cup triumph at Wembley that prompted chairman Dave Whelan to “Dad dance” in the Royal Box. It was a delight to see, but…