Redskins sign former Jets QB Mark Sanchez to back up Colt McCoyWashington needed QB after gruesome Alex Smith injury11/19/2018, 6:48 PMAug 19, 2017; Glendale, AZ, USA; Chicago Bears quarterback Mark Sanchez (6) warms up prior to the game against the Arizona Cardinals at University of Phoenix Stadium. Mandatory Credit: Joe Camporeale-USA TODAY Sports / Joe Camporeale