Roger's deal is done at $7.5 million. Orel's couldn't be closed, however, setting up the largest arbitration battle in baseball history.

Roger Clemens, Boston's two-time Cy Young Award winner, agreed Wednesday to a three-year, $7.5 million contract with the Boston Red Sox. The average annual salary of $2.5 million is the largest in baseball history, though Clemens will receive only the sixth-highest salary for 1989.But more records may be broken Thursday. Hershiser, the 1988 National League Cy Young Award winner and the Most Valuable Player of the playoffs and World Series, is scheduled for an arbitration hearing in Los Angeles with the Dodgers.

Hershiser is asking for $2.425 million, which would be the highest salary for this year and an arbitration record if he wins. The Dodgers are offering $2 million.

Meanwhile, players won all three decisions issued on Wednesday. Cincinnati left-hander Danny Jackson was awarded $1.15 million by arbitrator Thomas Roberts, rather than the $865,000 offered by the Reds. Los Angeles right-hander Tim Leary was awarded $670,000 by Anthony Sinicropi rather than the $575,000 offered by the Dodgers. And New York outfielder Len Dykstra was awarded $575,000 by Frederick Reel rather than the $455,000 offered by the Mets.

Players have won five of the eight cases decided so far.