New figures show that in it’s opening month UFC Undisputed 2010 sold less than half as much as the 2009 edition.

Concerns are beginning to emerge that the UFC Undisputed 2010 video game may not be selling as well as it’s predecessor.

UFC Undisputed 2010 was officially released today as pre-sales were revealed to have reached 400,000 copies.

UFC Undisputed 2010 is already proving to be a hit with game critics as the first reviews for the title pour in.

So far so good for THQ as the first official review for UFC Undisputed 2010 is full of praise for the game.

Chuck Liddell is the latest fighter to feature in a promo for the UFC Undisputed 2010 title which comes out on May 25th.

Watch a new promo video for UFC Undisputed 2010 highlighting the wide range of fighters that are featured in the game.

If you have registered with the UFC Undisputed 2010 community then you can now get your hands on the playable demo for the game.

The playable demo for UFC Undisputed 2010 will be released this Thursday for XBox 360 and PS3.

No sign of the UFC undisputed 2010 playable demo yet, but THQ have released a new video previewing the game’s improved career mode.