Stoops said there is a chance Ronnell Lewis could return Saturday from a knee injury that sidelined him against Missouri.
"He has a chance to be back this week, though I wouldn't say the percentages are great," Stoops said. "They didn't rule him out. He's recovering really well. What they had to do was as little as could be. They just sucked a little piece of cartilage out of there. It was as good as it could have been. Hopefully, he's back pretty quick."
The Sooners seem to miss their best coverage tackler from the start when Missouri returned the opening kickoff for a touchdown.
Would Lewis have made a difference?
"Oh, you never know. He's pretty special," Stoops said. "But (fullback) Trey Millard was in his position (on kickoffs) and actually did really well."
WALKER, NOBLE OUT THIS WEEK
The Sooners were forced to play with only three defensive tackles at Missouri due to injuries to Casey Walker (knee) and Daniel Noble (ankle).
Missouri took advantage of OU's thinness at tackle with numerous running plays up the middle.
The Sooners will be in the same situation against Colorado, as both Walker and Noble are expected to be out again.
"At this point," Stoops said, "we're not expecting them to play."
MURRAY SUFFERS FREAK PREGAME INJURY
One might have known it wasn't OU's night after running back DeMarco Murray gashed open his hand in warm-ups at Missouri. The injury required pregame stitches.
"He went out to catch kickoffs. His first one warming up, he caught it and had his gloves on, but felt his fingers split," Stoops said. "His finger split wide open in the web, and he had to get some stitches."
Stoops: "It's still a long year. The true message is that we have Colorado this week, our last North Division team, and then four South Division teams from there. There's still a ton in front of us. But not only us, everybody. You look at everyone playing across the country it's pretty balanced everywhere. In our conference I think it's pretty obvious that anybody can beat anybody. We have to be ready to play and have to do our work this week to be as good as we can be."