Saturday's UFC 125 will be headlined by a rematch between lightweight champion Frankie Edgar (13-1) and Gray Maynard (11-0).

Edgar's only loss came to Maynard in 2008, but he bounced back with three wins, followed by a shocking upset of champion B.J. Penn at UFC 112 in April. They fought again in August, and Edgar won the rematch. Now Edgar has a chance to avenge the loss to Maynard, and gain respect as one of the sport's best fighters.

"I just think it takes time," Edgar said. "BJ's been around for such a long time. He's been the dominant force at lightweight, so it's the process it takes for guys to welcome somebody new. I'm seeing (respect) more and more, but that's not what it's about. If I keep winning fights, the respect will come eventually."

There are a multitude of storylines to watch Saturday, besides those involving Edgar and Maynard. Here are 10 to watch at the MGM Grand Garden in Las Vegas.

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