The Ultimate Fighting Championship hosts its annual Independence Day weekend card in Las Vegas with UFC 162: Silva vs. Weidman on Saturday.
UFC middleweight champion Anderson Silva faces undefeated Chris Weidman in the main event in a middleweight title bout.
Former UFC lightweight titleholder Frankie Edgar fights Charles Oliveira in a featherweight match-up in the co-main event.
Also on the card, featherweight contenders Cub Swanson and Dennis Siver square off in a bout that will move one of them a step closer to a title fight.
The card also features the promotional debuts of Strikeforce standouts Tim Kennedy and Roger Gracie.
Countdown to UFC 162 takes a behind the scenes look at the fighters at the top end of the fight card as they prepare to step in the Octagon.