Unbelievably poor sportsmanship. I officially dislike Aoki. I would love to see Gibert Melendez crush him later this year at Strikeforce, no matter how unlikely.
Otherwise, an amazing event. I barely stayed up to watch all 7+ hours of it (it started at midnight my time). DREAM vs Sengoku was awesome. There wasn't really a single bad fight. Thanks to Masato's retirement fight, this event heralds a resurgence of MMA and K-1 in Japan with unprecedented attendance:
Sold-out Attendance: 37,000
Standing Room Attendance: 7,000
Total Attendance: ~45,000!*
*Actual numbers will announced in a few days.
UPDATE:
Aoki has named the hammerlock submission the Keichi Sasahara 2010 after DREAM event producer and Aoki's "boss". Aoki claims that Keichi told him to take Hirota out.
Aoki delivers a "heartfelt" apology:
http://www.sherdog.com/news/news/Dynamite-Notebook-Aoki-Apologizes-amp-Overeem-Plans-on-Fedor-21808
For entertainment value, romoshop thread over at mma.tv:
http://www.mixedmartialarts.com/mma.cfm?go=forum.posts&thread=1575042
So far, this one is my favorite:
