Not to learn what went wrong. Just to remember what took place after a blow to the head wiped out his memory of the game.
Cox suffered a head injury during the third quarter and couldn't recall any of the details from the lopsided loss. He clearly remembers the night before and then coming to in the trainer's room.
In between, nothing.
"I woke up and asked what the score was, and they told me, 'A lot to a little,'" Cox told The Associated Press on Tuesday. "That was kind of shocking to me -- I don't remember nothing."
Later, Cox fast-forwarded the game to the play on which he was injured. He had to know what happened. But he didn't see anything out of the ordinary.
"I think I caught his back or a knee or something like that," Cox said. "But I was out."
He tried to finish watching the recording of the game but couldn't, quickly switching it off.
"I deleted it," Cox said. "I don't even want to see it no more. Get well and just forget about it. I don't want to think about it."
Cox showed up Tuesday wearing dark shades to shield his eyes from the bright lights in the Broncos' locker room. Cox said he has never had a concussion before and used to wonder what all the fuss was about.
With his head pounding, he now understands.
"I looked at it as just a head injury. When it happened to me and I forgot everything, it makes you nervous," Cox said. "You feel like you got knocked down. But you got knocked down a few levels. It still scared me, because I don't know what happened."
Cox still has to pass the NFL-mandated post-concussion test before he can play.
"He got dinged in the head, so we're going through that whole procedure," McDaniels said. "Make sure we make a real smart choice on whether to travel him or not. We won't know that for a few days here."
Might Cox's head injury be affected by the flight to London?
"There's some things I'm sure that are impacted (with air travel)," McDaniels said. "That's one we'll treat very seriously and go through all the precautions we need to and try to make a real smart decision."
Cornerback Andre' Goodman (thigh) and safety Brian Dawkins (knee) were on the field for the portion of Tuesday's practice that the media was allowed to view. Both have missed the last two games.
"We did maybe one or two things good out of 85 or 90 plays on defense," Bailey explained. "We've just got to tighten things up. Nobody has their head down around here. It was tough, obviously, but we've got to move on. We've got another tough team to face this week."
And Cox hopes to be along for the ride. He said he's taking prescription medicine to help ease the headaches.
"Doc told me whenever I'm at home, sit and rest in the dark, watch movies," Cox said. "I plan on playing this week. I'm going to come up and get as much coaching as I can, watch as much film as I can and also get the treatment."
Cox won't rush back, especially after losing a stretch of his memory.
"That's what makes you nervous about it," Cox said. "You don't know how you're going to come back from it -- if it's going to bother you in the long run or can this happen again?
"I don't want that to happen again."
Copyright 2010 by The Associated Press