The Pac-12 announced Tuesday that it won't expand, ending weeks of speculation that the conference might add as many as four teams.

Because of instability in the Big 12, Oklahoma and Oklahoma State had expressed interest in joining the Pac-12.

Texas was also considering a move, but the existence of the Longhorn Network was a complicating factor. Texas Tech would have joined Texas as the 16th team

The Pac-12 presidents and chancellors were content with the league's structure -- not to mention the $3 billion television contract with ESPN and Fox that starts next summer and the league's wholly owned national and regional networks.

"After careful review, we have determined that it is in the best interests of our member institutions, student-athletes and fans to remain a 12-team conference," commissioner Larry Scott said in a statement released by the league.

"While we have great respect for all of the institutions that have contacted us, and certain expansion proposals were financially attractive, we have a strong conference structure and culture of equality that we are committed to preserve.

"With new landmark TV agreements and plans to launch our innovative television networks, we are going to focus solely on these great assets, our strong heritage and the bright future in front of us."

  • Oklahoma laid out its terms for the survival of the Big 12 as a nine-team conference, saying commissioner Dan Beebe has to go and Texas' Longhorn Network must submit to major restrictions. Three Big 12 school sources Tuesday confirmed the report first published by The Oklahoman.

    "Somebody at OU laid all their cards on the table," one of the school sources said. "And it's the issues and concessions we've heard over and over before."

  • Big East commissioner John Marinatto says all the members of his conference are committed to staying together.

    The presidents and athletic directors from the Big East football schools met for three hours at a Manhattan hotel Tuesday.

    Marinatto says each member pledged to remain in the conference and the league is aggressively searching for replacements for Pittsburgh and Syracuse. He says the non-football members also are on board.

  • The Mountain West Conference has begun informal conversations with universities from the Big 12 and Big East that might be left out in conference realignments. Mountain West commissioner Craig Thompson also has had conversations with Conference USA commissioner Britton Banowsky about a football merger.

  • Texas quarterback Garrett Gilbert, the son of former Cal quarterback Gale Gilbert, will miss the rest of the season for the No. 19 Longhorns after having surgery on his right throwing shoulder.

    Miscellaneous

    Representatives for the NBA and players will meet twice this week. Staffs from both sides will meet Wednesday without leadership from either side, a person with knowledge of the plans said. Commissioner David Stern, deputy commissioner Adam Silver, union executive director Billy Hunter, president Derek Fisher of the Lakers and other top negotiators would rejoin the labor talks for a meeting Thursday.

  • Australian-born scrumhalf Tim Usasz will captain the United States for the first time in its Rugby World Cup Pool C match against Australia on Friday.

    The Dallas Morning News and the Associated Press contributed to this report.