LAS VEGAS, OCT. 30 -- Promoter Bob Arum predicted today that either Sugar Ray Leonard or Marvelous Marvin Hagler would come out of retirement to meet new World Boxing Council middleweight champion Thomas Hearns.

According to Arum's scenario, one fight would take place in April and the other former champion would meet the winner later in 1988. That scenario is to Hearns' liking, because it gives him a chance to avenge his only two losses in 47 pro bouts.

"I am absolutely convinced that by the end of November, one of the other guys will decide to come back," Arum said. "That is based on conversations with Morris Goldings {Hagler's attorney} and Mike Trainer {Leonard's attorney}. The question is, who wants to stick his neck out first -- Marvin or Ray. I would like to see two huge, huge bouts in 1988. Then all three fighters and this promoter can retire."

Trainer told The Washington Post that Arum called him yesterday morning but that "I gave no indication to him that Ray was going to fight again because Ray hasn't given me any indication.

"The bottom line is no one can pretend to know what's on Ray's mind. But he has made no indication to me that he intends to fight."

Hearns called for Hagler and Leonard to return against him after stopping Juan Roldan in four rounds Thursday night to win the vacant WBC title. Hearns previously held the World Boxing Association welterweight, WBC junior middleweight and WBC light heavyweight championships. No boxer had ever won titles in four weight classes.

Leonard stopped Hearns in 14 rounds in a welterweight unification bout Sept. 16, 1981. Hagler stopped Hearns in four rounds April 15, 1985, to retain his middleweight title. Arum promoted both bouts, plus Leonard's 12-round decision over Hagler April 6.

"I would like to see a rematch with Ray Leonard or Marvin Hagler," said Hearns, a 29-year-old from Detroit. "I could be very, very satisfied to fight both guys and come out victorious."

Leonard and Hagler were at ringside as television commentators for Thursday's bout at the Las Vegas Hilton and neither said he would fight Hearns. Hagler said he is not sure what he will do; Leonard ruled out any comeback.

Hagler admitted any bouts between himself, Leonard and Hearns would be interesting. They would also be profitable; Hagler's $19 million earned against Leonard was the largest purse in boxing history.

"There's no love between Ray and myself. There's no love between myself and Tommy," he said.