Derek Anderson Video: Watch the Sideline Laugh That Led to the Meltdown

Derek Anderson, quarterback for the Arizona Cardinals, was caught smiling and partially laughing while sitting on the sidelines. 

When prompted by reporters to address what he was laughing about, Anderson suddenly lashed out at the press.

He maintains that he wasn't laughing or smiling but was merely talking to his fellow teammate.

Anderson may deny that it happened, but there's no refuting that silly grin on his face in this video.

Maybe he's just grown numb from losing so many times that it no longer affects him.  Arizona has had problems with poor play on both the offensive and defensive sides of the football all season.

Monday Night Football commentator Jon Gruden called out Anderson during the live telecast for not looking like he cared while his team was getting demolished by their NFC West rival San Francisco 49ers.

The Cardinals managed to score only two field goals in the first two quarters and were completely shut out in the entire second half of play.

Anderson finished the game completing a horrific 16-of-35 passes for zero touchdowns and one interception. 

The loss dropped the Cardinals to an overall record of 3-8 for the season, while San Francisco improved to 4-7.  It was the Cardinals' sixth straight loss, after starting the year with a 3-2 record.

Despite their futility this season, Arizona remains only two games behind in the NFC West race.

Their division is the only one in the league where all the teams have records that are under .500.

Derek Anderson Video: Watch the Arizona Caridinals QB Meltdown After MNF Blowout