#1 WWE splits up Matt and Jeff Hardy with poor results
As discussed, WWE fans typically don't like to see long-time tag teams broken up. However, when the team involved is a pair of real-life brothers, the audience tends to be even less enthusiastic about the rivalry.
WWE attempted to tell the story of Matt Hardy against Jeff Hardy on a number of occasions. After each had run its course, though, the Hardy Boyz ended up back together as a duo.
The company first promoted a big match between the eight-time tag team champions at the Vengeance pay-per-view in 2001. Jeff defeated Matt in a match refereed by fellow Team Xtreme member Lita. The bout was a flop - and the storyline was dropped. Within weeks, Matt and Jeff were back chasing tag team glory together.
Just over seven years later, though, WWE booked another feud between the two Hardy brothers - and this one was far more personal in nature.
Matt cost Jeff the WWE Championship at Royal Rumble 2009, leading to a rivalry which included an Extreme Rules match at WrestleMania 25, an "I Quit" match at Backlash 2009 and a Stretcher match on SmackDown.
This time around, the matches themselves were better, with several spectacular stunts in each. However, their battles never truly connected with the audience in the way WWE must have hoped. Fans struggled to get emotionally invested in the Hardy family feud. Shortly after the rivalry ended, Jeff left WWE, only returning in 2017.
When the Hardy Boyz made their 2017 comeback at WrestleMania 33, it was as a tag team. Matt and Jeff left the Show Of Shows with the RAW Tag Team Titles on their first night back in the company. Fans in attendance roared their approval, with their appetite to see the brothers as a tandem as strong as ever.