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NFL quarterback warms up in 'Ghostbusters' costume

A pregame routine gets a little spooky when a quarterback shows up to stretch dressed like a fluffy "Ghostbusters" villain.

Carson Palmer ain't afraid of no ghost. The Arizona Cardinals starting quarterback lost a friendly throwing competition against his teammates and had to pay the penalty on Sunday by trotting out for warmups in an inflatable "Ghostbusters" Stay Puft Marshmallow Man costume. The Cardinals posted a video of his escapades to both Twitter and Facebook.

The Stay Puft Marshmallow Man famously starred in the original 1984 "Ghostbusters" movie as a nearly unstoppable supernatural force made of marshmallow. Palmer's costume looks like it came off the shelf of a Halloween supply store.

Palmer jaunted into the stadium, executed some jumping jacks, adjusted his wandering mask and did a few stretches. The quarterback lost that week's Bucket Challenge, a competition that has the team's quarterbacks attempting to throw balls into a trash can. The one with the most misses has to wear a goofy costume chosen by the others.

Palmer might want to don the Marshmallow Man costume on every game day. The Cardinals blasted the Tampa Bay Buccaneers like a proton pack blasts a ghost, winning 40-7.