BOSTON--Dick Pole will start on the mound for the Boston Red Sox tonight against the division-leading New York Yankees, as managers Darrell Johnson and Billy Martin plan to keep their starting rotation intact despite yesterday's rain postponement.

The Red Sox, expecting a crowd almost as large as the 35,939 they drew for Mon-day's New York game, waited until two hours prior to game time before officially succumbing to the day-long drizzle.

Yesterday's game will probably be rescheduled as part of a day-night doubleheader at Fenway in late July.

BOSTON--The NHL yesterday declared Bobby Orr, all-star defenseman of the Bruins, a free agent, along with 81 other players whose contracts have expired or who have played out their one-year option period.

Ten to twelve teams have reportedly already informed Orr's attorney Alan Eagelson that they are interested in negotiating for Orr's services.

The NHL Montreal headquarters wired the list of free agents to each team yesterday at 9 a.m. The list is officially kept secret, but the Associated Press has collected most of the players' names from various sources.

At least eight Bruins besides Orr are now footloose and fancy free, including left winger Johnny Bucyk, center Andre Savard, and defenseman Dallas Smith.