The Executive Council of the NCAA joined the Presidents Commission in opposing a Division I-A football playoff to determine a national champion.

"The opposition we've heard confirms that most members do not want such a game," Wilford Bailey, president of the NCAA, said at a news conference. "Every indication we've had is that there is no desire to have a football championship."

The Executive Council makes recommendations generally supported by voting members. The members will vote on the recommendations at the convention in January at Nashville. The council and the Presidents Commission are the two most influential committees of the NCAA.

The council also issued resolutions to eliminate the date bowl bids can be made, increase the amount of federal aid athletes can receive, support steroid testing for research purposes and limit recruiting in some sports . . . . .

Navy introduced its basketball team to the media yesterday and the attention was directed to the players who will contend to replace 7-foot center David Robinson: 6-foot-9 freshman Darren Morningstar and 6-9 sophomore Byron Hopkins.

"We'll have a more balanced attack this year," senior guard Cliff Rees said. "Last year we relied on David to score 30 or 35 a game. This year we need to get 45 or 50 from our big guys, in general" . . .

Junior striker Kenny Emson scored the game's lone goal midway through the first half to lead George Washington past Maryland, 1-0, in a nonleague game yesterday at RFK Stadium's auxiliary field. George Washington is 6-3-2; Maryland fell to 5-5-3 . . .

George Mason's Tony Walsh scored the game's only goal off a rebound in the first half to lead the host Patriots to a 1-0 victory over Navy in a Colonial Athletic Association game. George Mason is 10-3-2 overall, 3-0 in league play. Navy is 6-6, 2-4.