A matchup between welterweights John Howard and Daniel Roberts, who replaced injured slugger Anthony Johnson earlier this month, is now official for “UFC on Versus: Vera vs. Jones,” which takes place on March 21 at the 1stBank Arena in Broomfield, Colorado.

Originally scheduled for the Versus-televised main card, which is headlined by Brandon Vera vs. Jon Jones, the Howard-Roberts bout is now slated for the event’s unaired preliminary card.

A grudge match between welterweights Anthony Johnson and John Howard scheduled for March 21 at “UFC on Versus 1: Vera vs. Jones” is off, as Johnson recently suffered a knee injury and has been forced to withdraw from the fight. Undefeated UFC newcomer Daniel Roberts will replace Johnson and fight Howard on the event’s Versus-televised main card.

The fight card on “UFC on Versus 1: Vera vs. Jones” is now complete following the addition of Clay Guida vs. Shannon Gugerty and Mike Pierce vs. Rob Kimmons to the event’s preliminary card on Tuesday. UFC on Versus 1 takes place on March 21 at the Odeum Colorado in Broomfield, Colorado near Denver, with its main card, headlined by Bradon Vera vs. Jon Jones, airing live on Versus.

Welterweights Anthony Johnson and John Howard are likely to square off at UFC Fight Night 21 on March 21 in Denver, Colorado, Howard announced on Thursday. The Versus-televised event is headlined by Brandon Vera vs. Jon Jones.

- The future of UFC heavyweight champion Brock Lesnar, sidelined since November with diverticulitis, is expected to be determined this week, according to UFC President Dana White, and it should finally be known if or when the UFC title-holder can return to action.

- UFC light heavyweight and former middleweight champion Rich Franklin will undergo surgery this week to repair a minor tear in his abdomen that will sideline him for up to 6 weeks, with a May return likely.

- UFC middleweight champion Anderson Silva has resumed training following elbow surgery and is on track for an April or May return.

Main card winners Matt Hamill and Matt Mitrione were among nine fighters issued medical suspensions on Tuesday by the Nevada State Athletic Commission stemming from bouts at Saturday’s The Ultimate Fighter 10 Finale in Las Vegas.

Hamill, who won by disqualification after opponent Jon Jones finished their fight with illegal elbows, will have to sit out until June unless cleared by a doctor after suffering a dislocated shoulder in the bout, while Mitrione, who defeated Marcus Jones on the Spike TV-televised main card, was also suspended until June for a right wrist injury.

Main card winners Frankie Edgar and Matt Hamill were the top earners for Saturday’s The Ultimate Fighter 10 Finale, according to official figures released Monday by the Nevada State Athletic Commission, each earning $46,000 to lead the $351,000 payroll for the Spike TV-televised event, which was held at The Pearl at The Palms in Las Vegas.

Kimbo Slice, a street fighter-turned-mixed martial artist and former EliteXC headliner, officially received $25,000 for his UFC debut, a unanimous decision win over Houston Alexander, who took home $13,000 for the loss.

Roy Nelson won The Ultimate Fighter 10 heavyweight tournament on Saturday by knocking out fellow finalist Brendan Schaub in the opening round at The Ultimate Fighter 10 Finale, which took place at The Pearl at The Palms in Las Vegas and aired live on Spike TV.

Jon Jones dominated Matt Hamill with vicious ground and pound in the card’s co-headliner, but suffered a disqualification loss due to illegal elbows, while Kimbo Slice made his UFC debut with a lackluster unanimous decision over Houston Alexander.

All twenty fighters scheduled to be in action tomorrow at The Ultimate Fighter 10 Finale at The Pearl at The Palms in Las Vegas made their bouts official on Friday, successfully weighing-in for the Spike TV-televised event.

The Ultimate Fighter 10 finalists Roy Nelson (263) and Brendan Schaub (240) were among those who successfully made weight, as were light heavyweight co-headliners Matt Hamill (206) and Jon Jones (206) and heavy-handed strikers Houston Alexander (208) and Kimbo Slice (212).

Now that the final episode of The Ultimate Fighter: Heavyweights has aired, the UFC has released the official fight card for Saturday’s live finale. The event will be headlined by a light heavyweight matchup between Matt Hamill and Jon Jones.

Two fights have been added to the December fifth scheduled The Ultimate Fighter 10 Finale in Las Vegas, NV. Those fights include Kurt Pellegrino vs. Frankie Edgar and Dennis Hallman vs. John Howard.

Welterweight veteran Denis Hallman, who signed a four-fight deal with the UFC last month, will return to the Octagon against John Howard at UFC 106 on November 21 in Las Vegas. Hallman and Howard have verbally agreed to the matchup, but bout agreements are still pending, according to MMAjunkie, which first reported the fight on Sunday.

UFC lightweight champion BJ Penn retained his title on Saturday in the main event of UFC 101, submitting Kenny Florian in the fourth-round of their championship headliner to cap off the pay-per-view event, which took place at the Wachovia Center in Philadelphia.

In the UFC 101 co-headliner, UFC middleweight champ Anderson Silva returned to the light heavyweight division and silenced his critics, following up back-to-back lackluster wins with a first-round knckout of former 205-pound champ Forrest Griffin.

All 22 UFC 101 fighters hit the scales on Friday at the Wachovia Center in Philadelphia to weigh in for their Saturday bouts, and the entire card, including headliners BJ Penn, Kenny Florian, Anderson Silva, and Forrest Griffin, successfully made weight.

The UFC lightweight champion Penn and challenger Florian both tipped the scales exactly at 155 pounds, while UFC middleweight title-holder Anderson Silva and Forrest Griffin both weighed in at 205 for their light heavyweight matchup.

The UFC today announced the majority of the fight card for UFC 101: Declaration, which is set for August 8th at the Wachovia Center in Philadelphia. Joining BJ Penn vs. Kenny Florian and Anderson Silva vs. Forrest Griffin on the pay-per-view main card will be Johny Hendricks vs. Amir Sadollah, Ricardo Almeida vs. Kendall Grove, and Josh Neer vs. Kurt Pellgrino.