QUIZ: How well do you really know your sport superstitions?

When it comes to professional athletics, these jocks have some seriously bizarre beliefs—remember Jason Giambi’s confession to wearing a gold thong for good luck?

Sport and superstition seem to go hand in hand. It's not unusual for someone to have a favorite number or lucky pair of gym socks... but professional athletes tend to take things to the next level. Lest we forget Jason Giambi’sconfession that he wears a gold thong for good luck (apologies for the mental image).

Also on Extra Mustard: Who said it -- Justin Bieber or Johnny Manziel?

In this spirit, I created a quiz to test your knowledge of weird and wacky sports superstitions: