TENNIS Pam Shriver is planning a comeback after undergoing surgery in June for torn cartilage in her right shoulder. The injury is the first serious one of her 12-year career. Originally, Shriver had hoped to play the remaining weeks of this year. Instead, she will launch her comeback in January in Brisbane, Australia. "In a quiet moment, you have to say to yourself: 'Pam, you're only 28. You're basically pretty healthy. If you don't give it one more good shot, you're going to look back and really be angry at yourself.' "

HOCKEY Pittsburgh Penguins -- Said Mario Lemieux is undergoing tests in Pittsburgh hospital to determine source of back pain. Results of tests are due today. Edmonton Oilers -- Goalie Grant Fuhr had 75-minute hearing before NHL President John Ziegler on his admission of substance abuse.

BASKETBALL Los Angeles Clippers -- Signed F Anthony Blakley, who played in France last season, as free agent. Blakley, out of Panhandle State (Okla.), averaged 24 points, 13 rebounds for St. Quentin in France after leaving CBA's Cedar Rapids Silver Bullets, for whom he averaged 11.7 points, eight rebounds in 25 games. Seattle SuperSonics -- Said they won't match reserve Jim Farmer's offer sheet from Denver Nuggets because they have too many guards. Farmer, 26, was signed by Sonics last Jan. 22 after Dale Ellis was injured in a traffic accident. He averaged 6.4 points in 38 games last season.

BOXING Junior Middleweights -- Roy Jones Jr. scored a fourth-round knockout Tuesday over Rollin "Chiller" Williams in Pensacola, Fla. Randy Shields, fighting for the first time in seven years, won a 10-round unanimous decision over Stewart Baynes Tuesday in Los Angeles. Postponed -- Oct. 8 title fight in Inglewood, Calif., between World Boxing Council super bantamweight champion Paul Banke and Daniel Zaragoza was postponed after officials learned the challenger has an ear infection.

DIVING Air Force Col. Micki King Hogue, a 1972 Olympic gold medalist, has been elected president of U.S. Diving, the national governing body for the sport. Hogue, who is commander of University of Kentucky's Air Force ROTC program, had served as vice president of administration for U.S. Diving the past two years.

COLLEGES Kansas -- Said Greg Gurley, a 6-foot-5 swingman from Kansas City, and Greg Ostertag, a 7-foot-1 center from Duncanville, Tex., have made oral commitments to play basketball for the Jayhawks.

HIGH SCHOOLS Soccer -- Starting time of boys game Friday matching O'Connell against host Paul VI has been changed to 6 p.m.