Wrestling 's Sinking Ship : What Happens to an Industry Without Competition -LRB- p. 160 -RRB- The Royal Rumble has been classified as being one of WWE' s most popular pay-per-view events.
Wrestling 's Sinking Ship : What Happens to an Industry Without Competition -LRB- p. 160 -RRB - The Royal Rumble is also one of WWE' s more popular pay-per-views.