Every NFL fan knows the league's catch rule is basically impossible to interpret. Nobody knows from week to week what will be called a catch and what won't. There's something about completing the process of the catch or making a football move or becoming a runner or some other nonsense, and none of it makes any sense.

But at the very least, I think we can all agree that when a receiver drops the ball on the ground, then traps it behind his legs, it is not a catch. At least, I thought we could agree on that before Sunday's Lions-Giants game and this play involving Odell Beckham Jr.

Yes, this play really was called a catch. I'm just as confused as you are.

This is not a questionable call or a close call or an interpretation or anything like that. This is a ball straight-up dropped on the ground, then trapped against a player's legs. It's fairly obvious the ball hit the ground, too. Pretty plain to see to anyone with eyes. And yet, a catch.

Amazingly, the Lions didn't challenge the play. It was only a 4-yard gain, so they decided it wasn't worth burning one of their two challenges. Either that, or Jim Caldwell thought it was a catch, too.