Joaquin Andujar, who rebounded from 6-16 in 1983 to 20-14, has been named United Press International's National League comeback player of the year. The St. Louis right-hander, 31, received 14 of 26 votes . . .

Right-hander Dennis Eckersley has signed to stay with the Cubs. The Chicago Tribune said it is a three-year deal for about $850,000 annually, club's option for a fourth year . . .

Commissioner Peter Ueberroth warns that the proliferation of TV superstations has become baseball's "most serious problem," casting in doubt the proposed transfer of Texas Rangers stock to Gaylord Broadcasting.

Rangers owner Eddie Chiles said the minority stock transaction would be on the agenda for baseball's winter meetings next week in Houston. The commissioner's office has suggested Gaylord make "some modifications."

Ueberroth said the superstations have "insidious" effect on ability of other teams to profit from their own markets, hurting attendance and depressing TV ratings because of saturation . . .

Dick Williams reckoned the Nation's Capital a nice place to visit, but guesses "it would take an act of Congress" to get it back into baseball ahead of Denver and Vancouver. The beer commercial star who manages the NL champion San Diego Padres on the side wondered on a Lite-sponsored visit if Washington would draw with a losing team.