Despite the Chicago Bears' ugly loss on Sunday night, Brandon Marshall was excited. He got a package at the Bears' training facility from his alma mater, Central Florida.

Inside, he found a UCF workout shirt he wanted to show off to his 752,131 Twitter followers. Marshall put the shirt on, had someone snap a pic, and tweeted the picture out. Only problem? He didn't notice his very nude teammate in the background.

Whoops! Marshall apologized and deleted the tweet. He didn't identify the bare Bear in the background.

Let this be a lesson to everyone: Think before you tweet, and be sure to check pictures to make sure there aren't any naked professional football players in the background.

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