It has been looming for a while, but it has been officially announced that Sports Authority has filed for bankruptcy while in the meantime it is also going to be closing 140 of its stores. That is about a third of its entire chain of stores. Back in January, pundits and analysts alike were predicting that the company was going to go bankrupt when it was revealed it had missed a debt repayment amounting to $20 million. The closing of…