That's because the German prospect, a flawless 10-0 in his budding mixed martial arts career including a "Fight of the Night" win over Mark Scanlon back at UFC 122 in his Octagon debut, blew out his shoulder in training camp and has been forced to withdraw.
Sherdog.com has it straight from the horse's mouth:
"As you can imagine I’m absolutely devastated by wrecking my shoulder again, as well as the news that I won’t be able to fight John. I never had a serious injury in more than 10 years of competing in various combat sports. Training and competing is my passion. Having to sit out for eight months was a total nightmare and the prospect of fighting again this fall was my only silver lining on the horizon. Being on the shelf again now is just disheartening. I just hope I can make a complete recovery one more time and come back an even stronger Panzer in 2012!"
No official announcement has been made at this time, but this being a British card, it would seem likely that Hathaway will be paired up with a suitable replacement.
The "Hitman" hype train was in full swing when he rocked and socked Diego Sanchez all the way back at UFC 114 in May 2010, which was seen by over one million pay-per-view customers.
He failed to build on that performance, however, dropping a lopsided decision to grizzled veteran Mike Pyle months later in London.
A rebound win over Kris McCray recently restarted his rise up the 170-pound ladder.
UFC 138, recently announced for the promotion's sole trip to the United Kingdom this year, will be headlined by the very first five-round non-title fight with a middleweight match-up pitting division hopefuls Chris Leben and Mark Munoz in what should be a violent war of attrition.
For the current UFC 138 fight card and line-up click here.