National Football League Commissioner Pete Rozelle announced yesterday in New York that Los Angeles Rams linebacker Mike Reilly, currently serving a one-year prison term for vehicular manslaughter, is being suspended for all games through the 1983 season and fined $5,000.

Reilly, who was convicted of causing the death of one person and seriously injuring two others as a driver in an auto accident last year, had been working out with the Rams as part of a work release program. He is serving the prison term in an Orange County, Calif., jail.

In advising Reilly of the suspension, Rozelle said that "participation in NFL games while serving a jail sentence, in my judgment, is inconsistent with public confidence in and respect for the game of professional football" . . .

Joe Pendry, who joined the new United States Football League last year as offensive coordinator for the Philadelphia Stars, was named head coach of the new Pittsburgh franchise. Joe Bugel, Redskins offensive line coach, had been a leading candidate for the job, but withdrew his name last week . . .

Oakland city officials asked the California Supreme Court to prevent the Los Angeles Raiders from playing their 1983 schedule at the Los Angeles Coliseum.

In an emergency petition filed with the court, attorneys for the city asked that a legal order signed early this year prohibiting the move be kept in effect until the city can appeal a recent ruling favorable to the Raiders in the city's eminent domain case . . .

Four University of Arizona football players filed suit in Tucson Superior Court seeking to prevent the NCAA from enforcing sanctions imposed last May against the school's football program . . .

University of Arkansas Coach Lou Holtz wants a four-team playoff to determine the national collegiate football champion.

"We definitely need to go to a playoff system," said Holtz, speaking to the Football Writers Association at Kings Island, Ohio. "We need to pick the top four teams by computer after the bowl games.

Also at the gathering were Pat Dye of Auburn, Bobby Ross of Maryland and Ken Hatfield of Air Force.

On another issue, all four coaches called for a straightforward approach to dealing with players involved with drugs.

Said Ross, "I think the key word on drugs is 'education.' I've got a 10-year old son who told me of drugs being passed in his school. We're going to have to take a hard stand, but we can't desert them, just as we can't desert our children" . . .

Former New York Jets star Gerald Philbin was in "satisfactory" condition at Central General Hospital in Plainview (N.Y.) after nearly drowning in his swimming pool.