College athletes initially testing positive for marijuana will be not be penalized under a mandatory drug-testing proposal to be considered by the NCAA at its January convention, according to the NCAA. But a second positive test for marijuana would result in a penalty. Under the proposal, athletes would be tested before and after selected football bowl games and NCAA championships.

Athletes who test positive for about 200 drugs -- including amphetamines and steroids -- would lose eligibility for up to a year only in postseason competition. Regular-season eligibility would not be affected.

The latest proposal is expected to cost $1.75 million over three years, at about $200 per test, according to John Toner, athletic director at the University of Connecticut and chairman of a special NCAA drug-testing committee . . .

Ricky Wilson scored 14 points and Rob Rose had 10 rebounds to lead George Mason to a 69-65 exhibition basketball victory over Marathon Oil at the Patriot Center. The loss was the first for Marathon Oil after four wins against Division I colleges . . .

Navy's basketball team will prepare for its Nov. 23 season opener against St. John's with a game against the Greek national team Saturday at 8 p.m. in Halsey Field House.

The Midshipmen return all five starters from last year's 26-6, ECAC South championship team, including preseason all-America center David Robinson. The Midshipmen have been ranked in a number of preseason polls, including 13th by The Sporting News and Sport magazine, and 15th by Inside Sports.

The Greek team is 4-9 in three tournaments this year, but has eight players 6 feet 8 or taller on its 12-man roster . . .

St. Joseph's was selected as the preseason basketball favorite in the Atlantic 10 Conference. George Washington University was picked to finish seventh . . .

LSU basketball Coach Dale Brown says he's tired of the Tito Horford affair and might quit out of frustration. "I'm sick of this thing hanging over my head," Brown told the Associated Press. "If the pluses don't outweight the minuses -- and I don't mean wins and losses -- I'll quit this year." Brown, whose program is being investigated by the NCAA, added that he might stay on but the NCAA is going to have to change "a recruiting system that is a monster." . .

Citadel linebacker Marc Buoniconti, paralyzed during a football game at East Tennessee on Oct. 26, underwent surgery to fuse together his second and third vertebrae, an operation that will allow him to be shifted off his back. He remains in critical condition and unable to move on his own, but the operation did stabilize his spine, according to a hospital spokesman in Miami.