Indianapolis Colts quarterback Anthony Richardson is questionable to start Sunday's key game against the New York Giants because of back and foot injuries. Richardson did not practice this week, but head coach Shane Steichen fell short of declaring his starter out. "We'll see how next 48 hours go," he told reporters Friday. If Richardson, 22, is unable to go, veteran Joe Flacco would make his fifth start of the season. The Colts (7-8) still have a shot at a playoff berth, but they'll need to beat the Giants (2-13) and the Jacksonville Jaguars (3-12) in Week 18 -- and get some help.