My dad told me this joke when I was a sophmore in high school. Whenever I retell it, which is approximately once per month, I refuse to update it so turn back your clocks to 1997.
After a terrible season, Jerry Jones, the owner of the Cowboys, was wondering how the Packers were doing so well so he decided to visit Green Bay to get some info.
He called over Mike Holmgren and said, "Hey Mike, how are you all doing so well?"
Holmgren replied, "It's easy. First things first, you've got to have a smart quarterback. Hey Brett, come over here." Brett Favre came jogging over and Holmgren said, "Brett, who is your father's brother's nephew?"
Brett paused for a moment and said, "Well, that'd be me coach."
"Good job. Now get back to practice." said Holmgren. Jerry Jones, feeling a sense of enlightenment, quickly returned to Dallas, ready to turn things around.
Upon arriving back in Dallas, Jones called over Troy Aikman and said, "Hey Troy, who is your father's brother's nephew?"
Troy thought about it for a bit and said, "Hmmm...Would it be alright if I get back to you on that one?" Jones agreed telling him to come back after practice.
During practice, Troy called over Deion Sanders and said, "Hey Deion, who is your father's brother's nephew?"
Deion thought about it for a bit and then said "Well, that'd be me!"
Troy nodded with approval and went back to show Jones what he'd learned.
Jerry Jones said "Well, did you figure it out?"
Aikman replied, "Sure did. It's Deion Sanders."
Jones responded, "No, you idiot, it's Brett Favre."