re: Yesterday really lowered my opinion of Patrick Mahomes

Dude was offside bottom line.

If the play failed and the defense was lined up offside and the ref called the penalty requiring the down to be replayed with a 5 yard penalty. Would they decline and say the defense was not warned to not line up offside and the refs should not call a penalty on a dude lined up offside. You learn in pop Warner as a receiver. Line up and check with the line judge.