In the decades that the WWE has been around, there have been plenty of tough superstars who have shown their physical prowess both in and outside of the ring.
When the WWE Universe gets asked who the toughest is though, they may think of former UFC stars such as Brock Lesnar or Ken Shamrock, or perhaps proven big men such as Big Van Vader or Bam Bam Bigelow.
There is one superstar though who has everyone else beaten, and is by far the toughest man in WWE history - Haku.
Whilst his WWF career may not have been much, holding just one title (a sole tag team title reign with Andre The Giant) the stories that have come out about the Tongan star show him to be the absolute hardest man in history.
Here are five stories that prove Haku is the toughest WWE Superstar in history.
#5 Beef with Brutus
But the Barber's sudden departure from the company may have been because he ticked off the wrong man backstage, that man of course being Haku.
The story goes that Beefcake filed a complaint with the WWF over the Tongan being too stiff, and when Haku was told, he immediately set out to hunt the future Zodiac down.
Choking him in the shower until he turned blue, and reportedly lifting Beefcake two feet off the ground, Haku's rage was only calmed when Hogan intervened, fearing for his friend, who admitted himself that Haku is the toughest of all time.