“The Rockies mascot is named Dinger,” comedian Jay Mohr wrote in “It Sucks to Be Them,” a piece on SI.com. “He is a big, fat, purple dinosaur who sports a baby T-shirt that barely covers his nipples.

The most embarrassing mascot in the major leagues is a fossil on the field. Dinger should be as dead as a dodo. Last week, as the Colorado Rockies clinched their place in the playoffs by beating the ...