Anderson Silva's next middleweight title defense will have to wait until next year. The UFC's longtime title-holder and one of MMA's top pound-for-pound fighters will soon undergo elbow surgery and will miss the remainder of the 2009 fight season. A source close to the event told MMAjunkie.com earlier in the week that UFC officials at least briefly considered the idea of Silva taking the headline spot at UFC 105, an event that takes place Nov. 14 in Manchester, England. Source: MMA Junkie