The San Jose-based mixed martial arts promotion is set for "Strikeforce at the Mansion II" tonight at the world famous Playboy Mansion in Beverly Hills, California.

This card has been cursed with injuries forcing some big named fighters to withdraw. The original main event was set to be Light Heavyweight Champion Bobby Southworth defending against talented Brazilian Renato "Babalu" Sobral, but both men suffered set backs in training.

Because of the injuries that match has now morphed into Anthony Ruiz vs. Trevor Prangley, which is a solid fight, but brings nowhere near the level of excitement or attention that Babalu vs. Southworth for the title would have.

There are also some fans out there who are upset with this event because Josh Thomson -- newly crowned lightweight champion -- is competing but not defending his strap. With all due respect to Ashe Bowman, "The Punk" more than likely isn't defending his belt because Bowman doesn't deserve a title shot yet and Strikeforce's lightweight talent pool is pretty shallow at the moment.

However, the signing of Japanese standout wrestling machine Mitsuhiro Ishida certainly bolsters the 155 pound division some. He and Kazuo Misaki will be making their Strikeforce debuts during this event, in fact, and both guys are definitely worth keeping an eye on.

Regardless of the injuries canceling the original main event, there is still plenty of promise for this card. To get you ready for the festivities we've detailed the main card bouts with analysis and predictions.

Without further ado, here they are:

Joe "Diesel" Riggs (28-10) vs. Kazuo Misaki (20-8-2)

Misaki has proven himself in Japan to be one of the best middleweight fighters in the world. He holds victories over Dan Henderson, Ed Herman, Phil Baroni, Denis Kang and fought to a draw against Jake Shields.

He's also fought and lost to top fighters such as Nate Marquardt (twice), Paulo Filho, Frank Trigg and Ricardo Almeida.

Put simply, he's been around the block in the fight game.

This will be his first fight since signing with Strikeforce earlier this year and he'll have his hands full with an equally experienced Joe Riggs.

At one point in Riggs' career he was considered a top five welterweight in the UFC. He hits hard, he's crafty, and he can also pull off submissions. His one loss since leaving the UFC was because of an injury suffered during the fight, meaning he can still compete at a high level.

The question for Riggs is can he handle Misaki's tireless work ethic? Will he be able to still fire on all cylinders if this fight goes deep into the third round? After all, Riggs hasn't fought to a decision since February of 2006 and Misaki has only been finished twice in his career.

It looks like the longer this fight goes the more the advantage will turn toward Misaki.

That's basically how I see it playing out. Riggs might come out strong, but I look for Misaki to weather the storm, keep a steady pace and impress the judges enough to come away with the win.

Prediction: Kazuo Misaki via unanimous decision

Lightweight champion Josh "The Punk" Thomson (15-2) vs. Ashe "The Machine" Bowman (6-4) in a non-title fight

"The Punk" never looked better than when he defeated long time training partner Gilbert Melendez to capture the lightweight belt back in June. His stand up looked great, his takedowns and wrestling were solid, and his cardio, considering the fight went all five rounds, was phenomenal.

There aren't too many people picking the Lion's Den product, Ashe Bowman, to do much in this fight. This is by far the biggest fight of his career. He hasn't faced anyone to date with any where near the skill level of Josh Thomson.

I look for Thomson to not only win, but to do so in impressive fashion.

Prediction: Josh Thomson via first round submission (rear naked choke)

Anthony "El Toro" Ruiz (21-11) vs. Trevor Prangley (17-5)

These two have fought once before with Prangley submitting Ruiz in the first round with an armbar.

Trevor Prangley is obviously the more skilled and all around talented fighter, but Ruiz is a workhorse and should never be counted out. He's always in great shape and always brings a relentless attack to his opponent.

Prangley has been training to fight Matt Lindland, who really isn't too much different than Ruiz stylistically. They both use a solid wrestling base to wear their opponents down. So, even with the short notice, Prangley should be well prepared.

The only problem I can foresee for Trevor is moving up in weight for this fight. He was training to compete at 185 pounds, which obviously means he'll be giving up a size advantage to Ruiz, who always competes at 205 pounds.

But in Prangley's defense, this won't be his first fight at light heavyweight and he has defeated Ruiz before. I don't really see this one going much different. I like Ruiz to go the distance, but I think Prangley will earn the win.

Prediction: Trevor Prangley via unanimous decision

Cory "The One" Devela (9-1) vs. Terry Martin (17-5)

Terry Martin is coming off a knockout loss to Vitor Belfort at Affliction: "Banned." That loss made it three out of four for him coming up on the short end of the stick.

Devela, on the other hand, hasn't lost a fight since June of 2004 to Ed Herman. His last three wins are against decent competition in Lodune Sincaid, Joe Riggs and Dan Molina. He brings a nice submission game to the table and is riding high on confidence right now.

I see this one going pretty much the same way most Terry Martin fights have gone lately. Either he's going to come out and knockout Devela (which has never happened), or he's going to get frustrated and tired, leading to another disappointing loss.

It should also be noted that Martin has never been submitted and Devela has never knocked an opponent out, which just adds more contrast to their respective styles.

I think Cory Devela is a talented young fighter with a bright future, but something is telling me that Terry Martin is going to rebound here with a big win. But if Martin can't score early with his power, he might lose on the score cards.

I'll stick with my gut.

Prediction: Terry Martin via first round knock out

Mitsuhiro "The Endless Fighter" Ishida (16-4-1) vs. Justin "The Silverback" Wilcox (5-2)

Ishida is known for his insane wrestling and non stop motor, as evidenced by his nickname. He was the first fighter to put a loss on Gilbert Melendez's record and that had everything to do with his style.

He frustrates his opponents by controlling them and usually wins by decision, ala Sean Sherk. In fact, 12 of his 16 wins are by decisions.

However, this will be his first fight in the U.S. and he'll be looking to make a name for himself here with an impressive win. Perhaps we'll see him look for the finish more against the less experienced Justin Wilcox.

Wilcox is a small show veteran with zero experience on the big stage. It's a difficult assignment for him to step up to not only the bigger stage, but also to be fighting someone like Ishida in his first high profile fight.

I think this mountain might be a little to high for the "Silver Back" to climb. I look for Ishida to dominate, but more than likely in another unanimous decision win.

Prediction: Mitsuhiro Ishida via unanimous decision

"Strikeforce at the Mansion II" is set to stream live from the Playboy Mansion in Beverly Hills, Calif., on Sherdog.com beginning at 10:30 p.m. ET (7:30 p.m. local) later on tonight (Saturday, September 20).

We'll have live results and as well as a post event recap, so make sure to check in to MMAmania.com before, during and after for all your coverage on this event.