FOOTBALL

Atlanta Falcons -- Signed QB Gilbert Renfroe. Waived DB William Evars.

New York Jets -- Waived RB Carl Byrum.

Phoenix Cardinals -- Waived RB Tony Jordan and LB Randy Kirk.

BASKETBALL

San Antonio Spurs -- Signed free agent G David Rivers, who previously played for Los Angeles Lakers, Minnesota Timberwolves and Los Angeles Clippers.

Minnesota Timberwolves -- Fs Sam Mitchell and Tod Murphy agreed to two-year contract extensions, Mitchell through 1993-94, Murphy through '92-93.

GOLF

PGA Tour -- Plans to build a Hall of Fame on a 4,500-acre site it is buying in southern Duval County near Jacksonville, Fla. Besides the Hall, proposed complex would include a permanent home for PGA Tour Productions, two championship courses, a resort hotel, residential areas and a 1,500-acre wetlands park. Sale could be completed by first of year and project could be finished in 1992. Projected costs were not revealed.

COLLEGES

North Carolina State -- At least for present, university will not sue former basketball player Charles Shackleford to collect $405,000 in fines stemming from his admitted rules violations, trustees have decided. Chancellor Larry Monteith advised against taking legal action, but refused to elaborate on his advice to the trustees.

Miami (Fla.) -- School officials met with Southeastern Conference Commissioner Roy Kramer to discuss possible alliance, but there was no commitment from either side, university president Edward Foote said. "It was really a fact-finding meeting. They were learning more about us and we were learning more about them."

Maryland -- Men's soccer team (4-1-1) is seventh in this week's coaches poll. Virginia (3-2-2) slipped to 11th and American (6-0) is tied for 20th.

Montgomery-Rockville -- Men's soccer team (4-0) is ranked fourth in junior college coaches poll.

William and Mary -- Named former New York Yankees reliever Mike Wallace pitching coach.

SOCCER

Washington Stars -- Announced fall clinic, open to area youth teams. Groups up to 15 may register for $60, with $4 for each additional participant. For information, call Debbie Shaw at (703) 352-GOAL.