What to know: NCAA's 5-in-5 eligibility rule sparks chaos, lawsuits and a first-of-its-kind case‎

The NCAA has passed many controversial rules in its long history but few have led to as much angst as the one approved over the summer giving athletes five years to play five seasons.The change has resulted in confusion, lawsuits and the once unthinkable notion of players leaving college, signing with professional teams and then turning around to head back to college.