21-year-old, Louis, who once worked at the Doncaster Rovers club as a hospitality waiter, has been issued with the number 28 shirt for the 2013/14 season.
He has signed as a non-contract player in aid of Bluebell Wood Children's Hospice in Sheffield.
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Although Israel was widely believed to have been behind the airstrike on September 6, it has never before commented publicly on it.
Top temperatures of 12 Celsius (54 F).
Sarah Sanders, the White House spokeswoman, acknowledged that the attack wasn’t even mentioned in the phone call.