At UFC London, Michael Bisping will be stepping into the Octagon for the 25th time in his UFC career. His opponent is arguably the best fighter to ever enter into a cage, Anderson Silva.

One of the biggest criticisms of Bisping's career is that he could never win the big fights when it mattered. Every time he got one fight away from a title shot, he would lose that fight. It can be debated whether or not a win over Silva will give Bisping the rightful claim to his first title shot.

What can't be argued is the fact that when Bisping is put up against someone he is supposed to beat, he gets the job done. When Bisping has his back against the wall against a tough challenger, he has always come out on the losing end.

Out of the 17 fights that Bisping has gone into as the favorite, he is 16-1. Out of the 7 fights that Bisping has gone into as the underdog, he is 1-6.

In 24 UFC fights, only twice has Bisping had a result that didn't match the betting odds. In his 10th UFC fight, he beat Denis Kang by TKO. The betting odds were very close, giving Bisping a 45% chance at winning, labeling him as the slight underdog.

In his 20th UFC fight, Bisping was beaten by Tim Kennedy. This was the first time in Bisping's UFC career that he lost a fight where he went in as the favorite. The oddsmakers had given him a 66% chance at winning.

The oddsmakers currently have Bisping as the +260 underdog against Silva, which translates to an estimated 28% chance at winning. If Bisping is able to beat Silva, it would be the first time that Bisping has defied the heavy odds against him.

Anderson Silva, on the other hand, has only once been put in a UFC fight where odds makers thought he was the underdog. He was a +180 underdog ahead of his first fight with Rich Franklin, a fight he won by KO in the first round to win the UFC Middleweight Championship. He has gone 15-2 (1 DQ) in the 18 UFC fights in which he was the betting favorite.

All betting odds courtesy of bestfightodds.com.