Joe Lavender, former cornerback for the Washington Redskins, pleaded innocent by reason of insanity in San Diego to charges from a jailhouse brawl that left three San Diego County deputies injured. He was held for trial Sept. 4 on three counts of battery.

Court records said Lavender became violent while being booked Jan. 30 into the El Cajon Jail after being arrested for carrying an illegal knife. Deputy David Knight testified that Lavender threw him onto a desk and the floor after trying to grab his mug shot and some papers from the desk.

Sheriff's Sgt. Joseph Lopez and Deputy Debra Sue Hinchcliffe said they were injured trying to subdue Lavender.

Lavender, a 1976-82 Redskin, was involved in a 1979 fight at an El Cajon auto dealership that left two police officers and two employes injured. He was found innocent by reason of insanity and ordered to undergo psychiatric treatment. A judge ruled in 1980 he had recovered his sanity . . .

Linebacker Charles Bowser, whose personal life has been fraught with tragedy in the past year, walked out of Miami Dolphins training camp Thursday night, saying he wanted to be traded, but changed his mind and came back yesterday.

A defensive star for the 1984 AFC champions, Bowser suffered an ankle injury last year and played only two games.

In October, his wife was killed in an auto accident, leaving him with a 1-year-old daughter. Since then, his father and grandfather have died, and Bowser underwent two offseason ankle operations only to reinjure the ankle lifting weights.

He told Coach Don Shula he was "real despondent."