Virginia's all-America center, Ralph Sampson, has been named the Atlantic Coast Conference's player of the year for the second straight season, the ACC Sports Writers Association announced. The 7-foot-4 junior from Harrisonburg, Va., received 69 votes in balloting by 102 members of the association. His only challenger was North Carolina junior forward James Worthy--also an all-America--who got 33 votes . . .

Gary Williams, American University's basketball coach, said that North Carolina-Charlotte and Seton Hall have contacted him or AU officials concerning head-coaching vacancies at their schools. In each case, Williams said, representatives of the schools were told to call back after AU's season ended, which was Thursday when the Eagles lost to Bradley, 76-65, in the first round of the National Invitation Tournament. A Charlotte paper reported Thursday that Williams was the leading candidate for the UNCC job . . .

Norm Stewart, who has guided Missouri to a 26-3 record, its best season in more than half a century, has been named United Press International's coach of the year. In balloting by 160 writers and broadcasters, Stewart had 32 votes. He was followed by Terry Holland of Virginia with 23, Gale Catlett of West Virginia with 13 and Lute Olson of Iowa with 12.