Anderson Silva vs. Stephan Bonnar staredown pic from UFC 153 press conference in Rio

Photo by Esther Lin for MMAFighting.com

Before they face off at UFC 153 this Saturday night (Oct. 13) on pay-per-view, Anderson Silva and Stephan Bonnar came nose-to-nose at the conclusion of today's "Silva vs. Bonnar" pre-fight press conference in Rio. See their pic and more right here.

Ultimate Fighting Championship (UFC) kicked off its traditional pre-fight press conference earlier today (Oct. 11, 2012) at the Windsor Barra Hotel in Rio de Janeiro, Brazil, the host city for this weekend's UFC 153: "Bonnar vs. Silva" pay-per-view (PPV) event, which goes down on Saturday night (Oct. 13) at the sold-out HSBC Arena.

You can find out what you missed in our UFC 153 press conference live blog by clicking here.

"Silva vs. Bonnar" is exactly what it sounds like: UFC Middleweight Champion Anderson Silva returning to the light heavyweight division to battle grizzled veteran Stephan Bonnar. This is a sneak peek of what you can expect when they square off again at tomorrow's weigh ins.

Remember: MMAmania.com will provide LIVE round-by-round, blow-by-blow coverage of the main card bouts on fight night (Sat., Oct. 13, 2012), which is slated to air at 10 p.m. ET on pay-per-view (PPV). The latest quick updates of the live action will begin to flow earlier than that around 6:45 p.m. ET with the "Prelims" match-ups on Facebook and FX.

More staredowns from today's presser below.

Antonio Rodrigo Nogueira vs. Dave Herman: