Janoris Jenkins fined $15,750, Josh Morgan fined $7,875

Redskins receiver Josh Morgan had the costliest mental mistake of Sunday’s game in St. Louis, when his 15-yard penalty for throwing the ball at Rams cornerback Cortland Finnegan pushed Washington out of range for a game-tying field goal. But Morgan didn’t have the costliest fine to arise from that game. Morgan was fined $7,875 for…