In West Palm Beach, Fla., representatives of major league baseball's owners agreed to provide the players association with a letter detailing what they claim are serious economic problems facing the game.

"We just discussed the entire situation and our views of the problems," Lee MacPhail, president of management's Player Relations Committee, said. "We asked how we could show the dimensions of the problem. They asked for a specific letter with documentation."

Don Fehr, acting executive director of the players association, said there remains some skepticism on the part of the players as to the depth of the problems that management has mentioned. That is why the union asked the owners to put their thoughts on paper, he said.

"No question, the players are skeptical," Fehr said. "There's a lot of history there and we are having some difficulty understanding what they are talking about" . . .

The Orioles would be willing to sign a 30-year lease to stay in Baltimore if the city builds a new downtown stadium exclusively for baseball, leaving city-owned Memorial Stadium for football, an Orioles official said.

"Everything is in the talking stages. Nothing is that far along," said Larry Lucchino, the team's vice president and general counsel. Lucchino's comments were published in the Baltimore Sun . . .

Dennis Martinez, Bill Swaggerty and Tippy Martinez combined to pitch a one-hitter in Miami to lead their team to a 5-0 victory in the Orioles' first intrasquad game.

Dennis Martinez, who needed only 17 pitches to retire the six batters he faced, was the winning pitcher. Storm Davis, who gave up two runs and yielded a home run to Gary Roenicke in the second inning, was the loser . . .

San Francisco Giants owner Bob Lurie is "seriously considering" moving the team to San Jose, Calif., Mayor Tom McEnery said as he announced plans to explore building a 45,000-seat stadium with private financing. McEnery also said he would talk with the San Francisco 49ers soon about their possible interest in moving out of Candlestick Park.