BRIEFLY : BRYAN WINS, ADVANCES TO MEET TOP-SEED RIOS.

Byline: Daily News Wire Services

NCAA champion Bob Bryan, from Camarillo and Stanford, won his first pro match in Monday's rain-delayed RCA Championships in Indianapolis, then set his sights on top-ranked and top-seeded Marcelo Rios, his second-round opponent.

Bryan ousted Steve Campbell 6-1, 0-6, 6-1 in an all-American match that featured dramatic swings and ended shortly before a rain shower swept across the Indianapolis Tennis Center.

Bryan said if he had to play the top seed, he prefers it be Rios than Pete Sampras, who is competing this week in New Haven, Conn.

Geoff Grant beat Slava Dosedel in straight sets (6-2, 6-3) in the only match to be completed before rain halted play as the Pilot Pen International got under way in New Haven, Conn.

The rain stopped long enough to allow the start of one night match, but a downpour about one hour later forced tournament officials to call it a night and reschedule everything for today.

BASEBALL: Houston Astros announcer Milo Hamilton, 71, was listed in stable condition after being hospitalized in Philadelphia because of chest pains.

HOCKEY: Steve Smith, 35, is making a comeback as a player in the NHL, leaving the Calgary Flames coaching staff for a spot on their blue line. He hung up his skates last summer because of a back injury but announced that he's coming back.

BOXING: Mike Tyson, who sought to bypass Nevada in a bid to return to the sport, will have a hearing before the state's athletic commission Sept. 9. It was not known immediately whether Tyson would appear at the hearing.

Jose Badillo of Puerto Rico outpunched Vincent Howard of Brooklyn in a fast-paced junior-lightweight bout to take a unanimous 10-round decision night at the Forum.

In a co-feature 10-round junior-lightweight match, Jose Antonio Ramirez of the Dominican Republic knocked out Sandro Marcos of Mexico in the eighth round.

In other matches, Antwon Leach of Studio City won on a second-round TKO over George Johnson of Palmdale (super middleweights), and Sergiy Ivashin of the Ukraine and North Hills knocked out Tim Cimino in the first round (junior middleweights).

OLYMPICS: The head of the International Olympic Committee's doping panel has sharply criticized IOC president Juan Antonio Samaranch for proposing a reduction in the list of banned drugs. In an article published in the French daily Le Figaro, Alexandre de Merode, chairman of the IOC medical commission, said the committee should continue its drive to stop doping, standardize anti-drug regulations and improve education.

BASKETBALL: The NCAA has removed New Mexico State from probation after accepting the school's final report on incidents of junior college transfer credits. The NCAA had put New Mexico State on three years' probation in 1996 and eliminated junior college basketball scholarships for two seasons. The scandal stemmed from manipulated credits from correspondence courses at Southeastern College of the Assemblies of God in Lakeland, Fla.