#6 Samoa Joe
Lesnar had just taken the Universal Championship off of Goldberg at Wrestlemania 33. As had been his modus operandi, he didn't show up again to defend the title until July of 2017.
At the first-ever Great Balls of Fire PPV on July 9, 2017, Lesnar was slated to defend his belt for the first time against Samoa Joe.
New Champs in WWE! More RIGHT HERE
Joe had debuted the night after the Royal Rumble when he attacked Seth Rollins on behalf of Triple H.
Joe didn't have a marquee match at Wrestlemania 33 but would go on to win a fatal five-way at Extreme Rules in order to challenge Lesnar at Great Balls of Fire.
Joe seemed like a plausible threat to the Beast after repeatedly attacking both Lesnar and Paul Heyman.
He did it against Seth Rollins and has since done the same against both Daniel Bryan and against then-champion AJ Styles.
For a guy who was built up as such a dangerous, butt-kicking machine, Joe has been anything but after the feuds have played out.
He lost to Bryan on Smackdown and he lost four matches when challenging Styles for the WWE Championship this past year.
Against Lesnar in his Universal Title match, Joe simply lost.
He didn't kick Lesnar's butt or leave him in a heap; he just lost.
After building Joe up so much as a hired-gun, he'd actually turned out to be the first course in Lesnar's first Universal Championship reign.
Joe's now reaching the same territory as Big Show, Braun Strowman and Bray Wyatt - a threatening challenge to a champion but ultimately a threat that turns out to be empty in the long run.
How are we to take him seriously if they keep booking him to consistently fail?