Ken Shamrock (Pictures) may not literally be "The World's Most Dangerous Man," but for many fans he embodies the sport of mixed martial arts. And unlike some veterans of competition, his competitive aggression remains beyond question.

The fighter across the cage from him Saturday in London at Cage Rage 25 will be Robert "Buzz" Berry, a tough, no nonsense brawler with a right hand that could drop a donkey in a head protector. What he might lack in pure technical skill, Berry more than makes up for in sheer size and fighting spirit.

Most observers agree that this could go one of two ways, with each possible ending looking more than plausible. Either a nimble-looking Shamrock will drop for a damaging ankle lock or heel hook to secure the win, or "Buzz" will simply run over the American with his power and determination.

I pick Berry to heap more misery on the older fighter, hammering him on the floor in a hard-fought single round of action.

What on earth is going to happen in the match between Jean Silva (Pictures) and Masakazu Imanari (Pictures)?

Your guess is as good as mine. If you're enjoying the effects of a mild hallucinogen, the chances are that your guess is better than mine, as this fight promises some incredibly unorthodox action.

Both fighters are known as sublime submission artists. While "traditional" is not a label usually associated with Silva, he has a slightly less bizarre approach to grappling than his opponent but fights with all of the slickness that you might expect from a Brazilian jiu-jitsu black belt.

However, it's impossible to simulate Imanari's unpredictable ground attacks in training, and I pick the Japanese fighter to catch a submission win late in the bout.

In a heavyweight encounter that will decide the No. 1 contender for the Cage Rage British title, Abu Dhabi-level grappler Mustapha al Turk (Pictures) takes on former K-1 fighter Gary "Smiler" Turner.

As a veteran of the K-1 ring, Turner is an excellent kickboxer who mixes his striking skills very well with judo and traditional jiu-jitsu. To many, though, he still looks like a well-informed traditional martial artist in a world full of pure hybrid fighters.

Al Turk, on the other hand, mixes his solid boxing with an excellent grappling and ground-and-pound game. Although Turner has been known to smile at his opponent from guard, I doubt he will be able to afford such luxuries against al Turk. If the London Shootfighter is able to stun Turner on the mat, the fight could go his way in a matter of seconds.

"Smiler" is a perennial underdog who has a habit of turning fights on their head and coming away with incredible wins. On this occasion, however, I think that al Turk's all-round game will be too much for him to deal with. Al Turk scrapes by with a tight decision win.

Pierre Guillet (Pictures) is 1-3 in Cage Rage and seems set to become 1-4 when he faces tough former boxer Tom Watson (Pictures) in a middleweight bout. Guillet has the skills and courage to cause problems for anyone, yet one thing he appears to lack is the sheer brute strength to get in his opponent's face and stay there.

Watson, a fighter who has spent a considerable amount of time training with Greg Jackson's team in New Mexico, also has the necessary skills but suffers from no lack of power or physical presence. With all things being equal, it's the bigger, stronger man who takes it. In this case that fighter is Watson, who should bully his way to a clear decision win.

In a fascinating light heavyweight bout, Roman Webber (Pictures) sets out to avenge a painful defeat Ivan Serati (Pictures) handed to his trainer, Lee Hasdell (Pictures), in December.

In that fight, Hasdell suffered a broken arm, and I expect this war to be an equally rough pitch battle. Neither fighter is known for his stamina. This bout should be explosive and short-lived, with Serati claiming another submission win.

Super-substitute Rob Broughton (Pictures) returns after suffering a terrible Achilles tendon injury in training. By all accounts the tendon still causes him trouble, but he will need to be on top of his game if he is to get past Neil Grove (Pictures).

Grove is a heavy-punching marauder who relentlessly goes after that one big, fight-ending blow. However, last time out he showed some holes in his game against "Buzz" Berry -- holes that a healthy Broughton should be able to exploit en route to a stoppage win.

Late-replacement and Brazilian jiu-jitsu ace Henrique Santana (Pictures) has grappling talent in abundance. Unfortunately for him, though, his awkward standup and unconvincing takedowns mean that he is tailor-made for London Shootfighter Michael Johnson.

Oddly enough, Santana demonstrated his vulnerability against Johnson's originally slated opponent Ross Mason (Pictures) back in November. A series of slightly desperate-looking takedown attempts left Santana exhausted and ripe for the picking by the end of the first round.

Although Santana's jiu-jitsu has bewildered many an opponent, I think that Johnson will wear the Brazilian down, eventually forcing him to engage on the feet and knocking him out in the second stanza.