The University of Southern California has received a two-year bowl ban and a sharp loss of football scholarships in a report on the NCAA's four-year investigation of the school.

The NCAA cited USC for a lack of institutional control Thursday in its long-awaited report, which detailed violations primarily involving Heisman Trophy-winning tailback Reggie Bush and men's basketball player O.J. Mayo.

The NCAA found that Bush was ineligible beginning by December 2004, a ruling that vacates every win in which he participated, including the BCS championship game in 2005, and could open discussion on the revocation of the New Orleans Saints star's Heisman.

While coming down hard on the football team, the NCAA largely accepted the terms of USC's self-imposed punishment on its men's basketball team.

Colorado has decidedtoleave the Big 12 and join the Pac-10, as the college sports landscape began a much-anticipated shift.

Nebraska could become part of the Big 10 as soon as Friday, and speculation is heavy that Texas, Texas A&M, Texas Tech, Oklahoma and Oklahoma State may also jump to the Pac-10.

If the Big 12 is further raided as expected, that would leave Missouri, Baylor, Iowa State, Kansas and Kansas State out in the cold.

Any of these schools could be targets for the Mountain West Conference, which this week held off on inviting rising football power Boise State after speculation swirled about the possible unraveling of the Big 12.

GOLF: In Memphis, Lee Westwood shot a 7-under 63 to take a one-stroke lead in the suspended first round of the St. Jude Classic.

Shanshan Feng shot an 8-under 64 to take a one-stroke lead over Juli Inkster and Na Yeon Choi at the LPGA Classic in Springfield, Ill.

Damien McGrane of Ireland and Luke Goddard of England shot 8-under 64s to share the lead after the first round of the Estoril Open in Portugal.

Brian Komline rolled in a 5-foot par putt on his 39th hole of the day and won a three-hole aggregate playoff by one shot over Pat Wilson to win the New Jersey Amateur title at Montclair Golf Club in West Orange.

NFL: Former Green Bay running back Ahman Green signed to play for the Omaha Nighthawks of the United Football League.

Carolina wide receiver Muhsin Muhammad, 37, is retiring from the NFL after spending 11 of his 14 seasons with the Panthers.

NHL: Tampa Bay general manager Steve Yzerman stepped outside the NHL to hire Guy Boucher as the Lightning's new coach.

Boucher, 38, has only one year of professional coaching experience, with the American Hockey League's Hamilton Bulldogs.

He replaces former Flyer Rick Tocchet, who was fired April 12.

TENNIS: No. 14 seed Dudi Sela ousted fourth-seeded Andy Roddick from the Queen's Club grass-court championships in London, 6-4, 7-6 (8).

OLYMPICS: The 2006 Olympic silver medalists Tanith Belbin and Ben Agosto, five-time U.S. champions in ice dance, announced their retirement from competitive skating. The duo plan to keep skating together professionally.