This Fan Post was promoted to the front page by Nick Thomas.
The UFC needed a big main event to headline with Tito Ortiz vs. Mark Coleman and it looks like Brock Lesnar (rank #2 by USA TODAY / SB Nation) vs. Shane Carwin (rank #7) is the answer. A fight between Lesnar vs. Carwin with a huge marketing push is guaranteed to bring tickets sales and pay per view buys.
With Shane Carwin out of his fight against Cain Velasquez in October, it's believed Cain Velasquez will get another opponent at UFC 104.
This is a smart move by the UFC - as it gives Cain Velasquez (rank #11) the ability to be used as a future contender.
HT: MMA Madness
[UPDATE] Shane Carwin posted this on his website:
"Lots of talk going around right now. It seems to stem from a twitter post out of MN. I can't confirm or deny anything I can just tell you guys that I am training harder then ever and your support and loyalty will carry me through any fight they send my way. With you guys on my side I am ready for whatever happens. Stay tuned to the site or UFC.com for any official news about me."
[UPDATE] from Fightersonlymagazine.co.uk, Velasquez to fight winner of Lesnar vs. Carwin:
"Shane Carwin is fighting Brock Lesnar in a UFC heavyweight title battle at UFC 106, Fighters Only has been able to confirm."
"Fighters Only has since been able to contact a well-placed source who has confirmed that the bout is "definitely" on."
"The UFC scrapped the UFC 104 fight to retain both as viable contenders."