Mississippi guard Marshall Henderson has been suspended indefinitely, the university announced Wednesday in a release.The 6-foot-2 senior, a former high school star at Hurst L.D. Bell, was suspended because of a “violation of team rules.” “Since the season ended, we have talked a lot about Marshall taking a greater leadership role with our team,” Ole Miss coach Andy Kennedy said in a statement. “With that comes greater responsibility, and he must do a better job of living up to the high standard we expect from him and he desires from himself.” Henderson averaged 20.1 points per game last season. He helped the Rebels win the SEC tournament championship and advance to the NCAA Tournament for the first time since 2002. Henderson came to Ole Miss with a history of discipline problems. He was arrested in both 2009 and 2011 and served time in jail after the second arrest because he violated his probation. Briefly • North Carolina men’s basketball: Athletic director Bubba Cunningham said Wednesday the school is gathering information on potential improper conduct by members of the men’s basketball team a month after the misdemeanor marijuana arrest of leading scorer P.J. Hairston. Hairston was driving a rented vehicle linked to a convicted felon facing pending drug charges at the time of the arrest. The school is already investigating whether NBA agent Rodney Blackstock has improper ties to Hairston or any other UNC athlete.• Pac 12 basketball: Commissioner Larry Scott said that he expected the Pac-12 to play men’s regular season basketball games in China within the next few years, and that he hoped the league’s cable network would someday be available there. • Minnesota basketball: Minnesota has put a practice facility for the men’s and women’s basketball programs in a priority group of sports projects on campus estimated to cost $190 million. The Gophers play in Williams Arena, which was built in 1928. Any renovations to that building would be in a second phase of athletic facilities development.