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Chris O'Meara, Associated Press
Oklahoma quarterback Landry Jones (12) fires a pass during the third quarter of an NCAA college football game against Florida State, Saturday, Sept. 17, 2011, in Tallahassee, Fla.

COLLEGE STATION, Texas — As Big 12 play begins this week, Oklahoma coach Bob Stoops says he hasn't thought too much about the possibility that it could be the last season of the league as it is now known.

He's simply worried about avoiding a repeat of last season when his top-ranked team hosts Missouri on Saturday. The Sooners were No. 1 in the BCS rankings last year when then-No. 18 Missouri beat them 36-27 in Columbia, Mo.

He says the conference realignment talk isn't a distraction to his team and that "all we're thinking about is playing Missouri."

The other Big 12 game on the schedule in the first week of league play is the only matchup of Top 10 teams in the country, with No. 7 Oklahoma State visiting eighth-ranked Texas A&M.