Sunday was filled with sloppy football, silly mistakes and head-scratching decisions.Another NFL player gave away a touchdown by carelessly dropping the ball before he crossed the goal line. A roughing-the-kicker penalty erased a touchdown return in a different game. The Super Bowl champions ignored their record-setting running back. The most egregious play of Week 5 occurred when Cardinals running back Emari Demercado turned a 72-yard touchdown run into a touchback by slowing down near the goal line and releasing the ball as Titans cornerback L’Jarius Sneed swiped at his arm. Officials initially ruled it a touchdown but a video review showed Demercado didn’t have possession when he entered the end zone.Instead of increasing Arizona’s 21-6 lead, Demercado’s gaffe kept Tennessee in the game. Teammate Dadrion Taylor-Demerson then gave the Titans a chance to win after he intercepted Cam Ward’s pass but fumbled while falling to the ground in a wild play that resulted in a touchdown for Tennessee. Receiver Tyler Lockett fell on the loose ball in the end zone, cutting the Cardinals’ lead to 21-19 with 4:51 left. Joey Slye made a 29-yard field goal as time expired and the Titans beat the Cardinals to snap a 10-game losing streak.Last week, Colts receiver Adonai Mitchell committed the same costly miscue, which makes Demercado’s blunder even more inexcusable because it should have been on the forefront of every …