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 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.

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).

A plea deal by Jeff Monson on charges of painting graffiti on the Washington Capital could force him to withdraw from several scheduled fight abroad, while a trio of bouts has been added to the lineup for the September 2 WEC 43 event in Youngstown, Ohio.

Details on these stories and the latest MMA news and notes in MMAFrenzy.com’s latest quick hits…