The National Labor Relations Board sided with the NFL Management Council yesterday and approved a complaint that the NFL players union used illegal violence during the 24-day strike.

The Management Council is seeking a statement withdrawing threats made against replacement players and fans. Tim English, an attorney for the union, said he's confident the matter will be settled without litigation, the next step after the complaint's approval.

The board cited violence in six NFL cities, including Washington, where it said various Redskins players blocked and hit a bus carrying replacement players. Redskins defensive tackle Darryl Grant, who broke a bus window with his fist, said yesterday: "Hey, I've got no comment. I paid for the window with my own money, and that's really all I've got to say about it."

The other cities mentioned were Houston, where pickets blocked an entrance and players threw eggs; Kansas City, where two players brandished shotguns at the picket line and others threw rocks at cars; Cincinnati, where two striking players put scratches on two cars entering the practice facility; Denver, where mass picketing blocked people from the team's ticket office, and Philadelphia, where there was mass picketing and egg throwing and violence against fans entering the stadium.