As speculated on Wednesday after their UFC.com profiles were removed, recent middleweight title challenger Thales Leites and lightweight TUF 8 castmember George Roop have both been released from their UFC contracts, according to MMA Fanhouse.

The latest cuts follow the release of welterweights Tamdan McCrory and Dan Cramer on Wednesday, all of which were in action at Satuday’s UFC 101 event.

Contrary to previous reports following his knockout of Forrest Griffin on Saturday at UFC 101, Anderson Silva says he won’t be relinquishing his middleweight title to remain permanently at light heavyweight and will continue to fight in both divisions.

In other news, the UFC will counter-program Saturday’s Strikeforce: Carano vs. Cyborg event with a free replay of UFC 100 on Spike TV, Dennis Hallman has signed a four-fight contract to return to the UFC, and more…

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.

Recent injuries suffered by Matt Wiman and Rob Emerson have forced changes to the UFC’s upcoming UFC 101 and UFC 103 lineups.

A cut that required stitches forced Emerson out of his scheduled UFC 101 preliminary card fight against George Sotiropoulos, with George Roop tapped as a replacement, while Emerson will replace Wiman, who is sidelined with a knee injury, and take on Rafael dos Anjos at UFC 103.

All 10 fighters tested by the Nevada State Athletic Commission for performance enhancing drugs and drugs of abuse at UFC 98, including headliners Lyoto Machida and Rashad Evans, have tested clean. NSAC Executive Director Keith Kizer confirmed the negative tests to MMAFrenzy.com on Monday afternoon.

The Nevada State Athletic Commission has issued medical suspensions to nine fighters who fought at UFC 98 on May 23 in Las Vegas. Main event loser Rashad Evans, who suffered a second-round knockout to Lyoto Machida, is suspended until July 23rd for precautionary reasons.

Headliners Rashad Evans and Lyoto Machida and co-main event fighters Matt Hughes and Matt Serra were the top earners at UFC 98 on Saturday in Las Vegas. Evans, the former UFC light heavyweight champion who was defeated via second-round knockout by Machida, earned $200,000 for the bout. Machida received $140,000 for his main event victory.

Lyoto Machida became the new UFC light heavyweight champion on Saturday in Las Vegas, taking out title-holder Rashad Evans with a flurry of punches in the second round of their UFC 98 headliner to capture the 205-pound belt. Matt Hughes, Drew McFedries, Chael Sonnen, and Frankie Edgar also picked up main card victories.

All 22 fighters, including UFC light heavyweight champion Rashad Evans and challenger Lyoto Machida, rivals Matt Hughes and Matt Serra, and late-replacement Mike Pyle, successfully made weight on Friday in Las Vegas for UFC 98. The event's official weigh-in results are available after the jump...

Underdog Efrain Escudero topped highly touted Phillipe Nover via unanimous decision in the main event of The Ultimate Fighter 8 “Team Nogueira vs. Team Mir” Finale to win the season’s lightweight tournament.
The event took place on Saturday, December 13th, at The Pearl at The Palms in Las Vegas and aired live on Spike TV.
In the [...]

Fighters tipped the scales moments ago in Las Vegas to weigh in for the matchups tomorrow night at The Ultimate Fighter 8 “Team Nogueira vs. Team Mir” Finale, which takes place at The Pearl at the Palms and airs live on Spike TV.
Middleweight Wilson Gouveia failed to make weight for his scheduled middleweight contest against [...]

With just one semi-finals slot remaining, the final lightweight bout is on tap this week as Team Nogueira’s John Polakowski faces off against Team Mir’s George Roop to advance in the 155-pound tournament.
Before his bout against the hugging machine Polakowski, Roop injures his hand after catching it in the octagon fencing while training for the [...]

The complete, 32-fighter cast of lightweights and light heavyweights for the upcoming season of the UFC’s “The Ultimate Fighter” reality series, “The Ultimate Fighter 8: Team Nogueria vs. Team Mir”, was today announced by Spike TV.
The upcoming season of “The Ultimate Fighter” features both a sixteen fighter, 155-pound tournament and a sixteen fighter, 205-pound tournament.
Two [...]