Chicago Bears running back D'Andre Swift shapes up as a risky flex option in Week 13 as he faces one of the most formidable run defenses in the NFL in the Detroit Lions. Despite some injuries, Detroit's rush defense remains formidable, ranking fifth in rush yards allowed and second in points allowed. Swift had a down performance in Week 12, rushing 13 times for just 30 yards and failing to generate the big plays that have been key to his fantasy value in recent weeks. To make matters worse for ...