UFC 73

UFC 73: Stacked was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC). It took place on July 7, 2007, at the ARCO Arena in Sacramento, California and featured a total of nine bouts: four on the preliminary card and five on the main card.

Background
In the main event, Anderson Silva put his UFC Middleweight Championship belt on the line against Nate Marquardt.

The card's other championship match had Sean Sherk defending his UFC Lightweight Championship belt against Hermes Franca. Post–fight, the California State Athletic Commission announced that both fighters tested positive for performance enhancing drugs. Sherk was eventually stripped of the title.

Jason Gilliam was the third choice for Chris Lytle's opponent. Originally scheduled to compete was Jeff Joslin, who withdrew due to a training injury. His replacement, Drew Fickett, also withdrew later due to injury.

Jorge Gurgel was initially reported to be facing future WEC Lightweight Champion Jamie Varner at this event, but Varner was later moved to the WEC for a planned match at WEC 27. Gurgel would instead fight Diego Saraiva on this card.

Bonus awards
After the event's conclusion, the UFC awarded $40,000 to each of the fighters who receive one of these three awards.


 * Fight of the Night: Diego Saraiva vs.  Jorge Gurgel
 * Knockout of the Night: Anderson Silva
 * Submission of the Night: Chris Lytle

Purses
Purse amounts were provided by the California State Athletic Commission, and include amounts for show and win. The figures do not include any undisclosed bonuses: Total disclosed payroll: $761,000
 * Anderson Silva – $90,000 ($45,000 + $45,000 win bonus) def. Nate Marquardt – $24,000
 * Sean Sherk – $28,000 ($14,000 + $14,000 win bonus) def. Hermes Franca – $14,000
 * Tito Ortiz – $210,000 draw with Rashad Evans – $16,000
 * Antônio Rodrigo Nogueira – $200,000 ($100,000 + $100,000 win bonus) def. Heath Herring – $70,000
 * Kenny Florian – $16,000 ($8,000 + $8,000 win bonus) def. Alvin Robinson – $3,000
 * Stephan Bonnar – $32,000 ($16,000 + $16,000 win bonus) def. Mike Nickels – $5,000
 * Chris Lytle – $20,000 ($10,000 + $10,000 win bonus) def. Jason Gilliam – $3,000
 * Jorge Gurgel – $14,000 ($7,000 + $7,000 win bonus) def. Diego Saraiva – $3,000
 * Frank Edgar – $10,000 ($5,000 + $5,000 win bonus) def. Mark Bocek – $3,000