Michael Thomas, File, Associated Press
FILE - In this Nov. 16, 2013, file photo, Texas coach Mack Brown watches a video reply with his team during the first quarter of an NCAA college football game against Oklahoma State in Austin, Texas. Brown is facing an interesting weekend: He's trying to win a league championship at No. 9 Baylor on Saturday while fighting off speculation he could be fired.

AUSTIN, Texas — Texas coach Mack Brown has had a running joke all week: He's the only coach in America playing for a conference championship while also shrugging off speculation he could be replaced.

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That sums up the drama surrounding Brown and a team who have fought their way through a topsy-turvy season of embarrassing losses and big wins and now find themselves on the verge of a Big 12 title in the final game of the regular season.

The No. 23 Longhorns (8-3, 7-1) play at No. 9 Baylor (10-1, 7-1) with at least a share of the conference title at stake. For either team, a win coupled with an Oklahoma State loss — the Cowboys beat both in November — will earn the victor the crown outright.