This is something funny and cool I noticed... Some had a small complaint following Summerslam that Cena taking a huge beat down by Lesnar as opposed to Punk putting up much more of a fight a year earlier made Punk look superior to Cena. My first response was that this was simply looking too much into it as there are all kinds of inconsistencies like these in wrestling, but upon further thought, maybe there actually IS a good argument as to why this happened. That argument might be that the F-5 is simply the most devastating finisher in the WWE today. Proof of how devastating the move can be? One has to look no further than Wrestlemania XXX. Despite the Undertaker kicking out of multiple finishers (Sweet Chin Music, Pedigree, etc.) and several chair shots and sledgehammer shots in the previous four or five years before losing the Streak, three simple F-5's in a normal match that didn't allow the use of weapons was able to keep the Undertaker down this year. Perhaps in kayfabe, you can simply look at the F-5 as the worst move that you can be hit with. Point is, Cena unlike any of Brock's other opponents (unless I'm sorely mistaken here, and I'm pretty certain I'm not since there's only seven other matches to sample from) got hit with the F-5 in the very early stages of the match. You could easily just say that once that happened, the momentum shifted entirely in Brock's advantage for the rest of the match on. If anyone on the Creative team took notice of this, they could even incorporate this into the buildup for Night Of Champions by having Cena acknowledge this and talk about how if he can avoid being hit with the F-5 that early (or at all), then he knows he has a fighting chance against Brock Lesnar.