Four questions UFC 154 will answer

Georges St-Pierre returns to the cage on Saturday in Montreal. What questions will be answered by these fights?

How has Georges St-Pierre's knee healed? By the time GSP steps into the cage on Saturday, 567 days will have passed between his two fights. In that time, he prepared for a fight, injured his knee and rehabbed it. We will see if GSP's knee has returned to form, and how he has psychologically dealt with the injury.

And if it has healed, can GSP finish fights? The one constant criticism laid on the welterweight champ is that he can't finish fights. In his last six fights, he has only one TKO. He has talked about being opportunistic and looking for the finish. Will he be able to stop Condit?

Can Martin Kampmann win without a come-from-behind finish? In his wins over Thiago Alves and Jake Ellenberger, Kampmann had to come from behind to finish his fihts after being beaten soundly. Will he need the same magic against Johny Hendricks?

Can Mark Hominick turn his career around? At UFC 129, Hominick came close to beating Jose Aldo in the final round. Aldo survived and won the decision, and it was the start of Hominick's losing streak. He was knocked out by Chan Sung Jung in one of the UFC's fastest knockouts, and then dropped a decision to Eddie Yagin. On Saturday, can he be the one get his arm raised for the first time since January of 2011?