Ultimate Fighting Championship middleweight superstars Anderson Silva and Michael Bisping will collide in the main event of UFC Fight Night 84 on Saturday at O2 Arena in London, England.

Silva, who is regarded as one of the best mixed martial artists in history, will be making his comeback from a long layoff after he was suspended for testing positive for banned substances before and after his fight against Nick Diaz in January last year.

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On the other hand, Bisping is coming off two victories last year -- unanimous decision win against CB Dollaway at UFC 186 in April and split decision win over Thales Leites at UFC Fight Night in July. The 36-year-old has been throwing barbs over the past several weeks, maintaining a firm stance on Silva's PED issue.

"Unfortunately, turns out he was a fraud. He was a coward. He was a cheat. He was taking steroids his whole career," Bisping said via ESPN. "He was found out and sentenced to a suspension and still denies it to this day. He pretends it didn't happen."

While Bisping has been uttering strong statements against Silva, the former UFC middleweight champion said that he is focused on the upcoming task at hand and is determined to prove his doubters wrong on Saturday.

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"I don't care if Bisping talks too much," Silva said via Daily Star. "I came to finish my job. I have my mission, and my mission is to come on Saturday and win. Done that's it."

Live Stream and Predictions

The Silva-Bisping UFC Fight Night showdown will be shown live on UFC Fight Pass at 4 a.m. ET. More broadcast information and complete list of fights are available on UFC's official website.

Silva, who will be fighting just for the second time following his recovery from a gruesome leg injury, is a heavy favorite heading into the showdown. The Brazilian superstar is known for his effective counter punches, which could be a critical factor on Saturday as Bisping loves to attack. Silva by unanimous decision.

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