Strikeforce heavyweight champ Alistair Overeem and Bellator lightweight title-holder Eddie Alvarez were among the winners on Sunday at DREAM 12 in Osaka, Japan.

Overeem submitted James Thompson with a guillotine choke in under a minute in the DREAM 12 main event, while Alvarez used an arm-triangle choke to defeat Katsunori Kikuno in the second-round of their featured matchup.

All eighteen fighters scheduled to compete at tomorrow’s DREAM 12 event in Osaka, Japan hit the scales earlier today to weigh-in for their bouts. Lightweight Won Sik Park was the long fighter on the card who failed to make weight on their first attempt, with notables Alistair Overeem, James Thompson, Eddie Alvarez, Kazushi Sakuraba, and Chase Beebe all hitting their marks.

DREAM recently announced additions and changes to the fight card its October 25 DREAM 12 event, including Kazushi Sakuraba replacing Melvin Manhoef against Zelg Galesic and welterweight champ Marius Zaromskis’ return to action in a non-title bout against Myeon Ho Bae.

Read about the latest Japan fight bookings and news in MMAFrenzy.com’s Rising Sun Roundup…

The officials over at FEG and DREAM officially made an expected announcement today that they will be holding their annual New Years Eve show again this year, at the Saitama Super Arena in Saitama, Japan. K-1 executive Sadaharu Tanikawa said that the event would follow last year’s hybrid format, including both K-1 bouts and Dream MMA bouts, to fill out an eighteen fight card.

Kevin Randleman will face Stanislav Nedkov and Jorge Masvidal will fight Satoru Kitaoka at Sengoku 11.

Hong Man Choi has accepted Shaquille O’Neal’s challenge to fight in an MMA bout.

These stories and a few more in MMAFrenzy’s Rising Sun Round Up.

The previously reported bout between Alistair Overeem and Sam Hoger, slated for an upcoming Shooto event, has been scrapped. Overeem will instead face Tony Sylvster at the Oct. 17 Golden Glory event in Amsterdam.

Bibiano Fernandes upset Joe Warren in the DREAM featherweight grand prix semifinals then topped Hiroyuki Takeya in the main event of DREAM 11 on Tuesday to become the promotion’s featherweight champion.

In other notable action at the Yokohama Arena in Kanagawa, Japan, Shinya Aoki became DREAM’s lightweight champ by submitting title-holder Joachim Hansen in the closing seconds of their co-headlining matchup, veteran Kazushi Sakuraba easily submitted newcomer Rubin Williams, and Rameau Thierry Sokoudjou and Ikuhisa Minowa advanced to the Super Hulk tournament finale.

DREAM today held weigh-ins for tomorrow’s DREAM 11 event, which takes place at the Yokohama Arena in Kanagawa, Japan and airs live in North America on HDNet.

Headliners Joachim Hansen, the promotion’s lightweight champ, and challenger Shinya Aoki were both on weight for their main event matchup, as were featherweights Bibiano Fernandes, Joe Warren,Hiroyuki Takaya, and Hideo Tokoro, who will all be in action on Tuesday in the conclusion of DREAM’s 2009 featherweight grand prix.

Japanese MMA legend Kazushi Sakuraba will look to rebound from back-to-back losses when he returns to action on short notice at Tuesday’s DREAM 11 event against professional boxer Rubin Williams, who will be making his MMA debut in the bout.

DREAM 11, which takes place at the Yokohama Arena in Yokohama, Japan, features the finale of the promotion’s featherweight tournament as well as a lightweight championship bout between title-holder Joachim Hansen and Shinya Aoki.

A bantamweight matchup between WEC veterans Chase Beebe and Yoshiro Maeda has been added to DREAM 12 on October 25 in Osaka, Japan, the promotion announced on Friday.

The Japanese promotional group FEG, which runs the Dream MMA events, has long be suggesting that they had a big surprise in store for their already announced Dream 12 event, which will take place on October 25 in Osaka, Japan. They had already released a short promotional video in which were a few shots of a cage which led some people to believe that would be the surprise. Those people were correct, and Dream has officially confirmed that with a new promotional video for the event (included below).

All six fighters that were drug tested for UFC 102 tested clean, Urijah Faber’s hand has been cleared to hit the punching bag, and Gesias “JZ” Cavalcante has pulled out of his Dream 11 bout due to injury.

Read about the latest MMA news in MMAFrenzy.com’s Quick Hits…

After it was reported yesterday that Gegard Mousasi was forced to pull out of his upcoming “Super Hulk Tournament” bout with Rameau Thierry Sokoudjou, there was some discussion as to who might fill his place. In a move that will likely surprise almost no one, Dream officials have decided to bring Bob Sapp back into the tournament as Mousasi’s replacement

A shoulder injury likely suffered in an August grappling exhibition against Fedor Emelianenko has forced Gegard Mousasi out of DREAM’s “Super Hulk” tournament and a semifinals matchup against Rameau Thierry Sokoudjou, which had been set to take place at DREAM 11 on October 6 at the Yokohama Arena in Kanagawa, Japan.

With Nick Diaz sidelined from fighting California for the immediate future after recently declining to take a mandatory drug test, the Strikeforce welterweight could fight in Japan for DREAM in October, with Hayato Sakurai being discussed as a potential opponent.