The California Angels placed three players, including outfielder Don Baylor, the major league runs batted in leader (80), among 12 reserves named today to the American League All-Star Team.

Second baseman Bobby Grich and catcher Brian Downing also were named from the Angels for the 50th All-Star Game Tuesday night in the Seattle Kingdome.

The New York Yankees had outfielder Reggie Jackson and third baseman Graig Nettles selected for the team by Manager Bob Lemon.

Also chosen were first baseman Cecil Cooper of the Milwaukee Brewers, shortstop Rick Burleson of the Boston Red Sox, catcher Jeff Newman of the Oakland A's, first baseman-outfielder Bruce Bochte of the Seattle Mariners and outfielders Chet Lemon of the Chicago White Sox, Steve Kemp of the Detroit Tigers and Ken Singleton of the Baltimore Orioles.

At least one of the backups, probably Cooper, will step into the starting lineup with California first baseman Rod Carew unavailable because of a thumb injury and outfielder Carl Yastrzemski of Boston doubtful because of a strained Achilles' tendon.

Earlier in the day, National League Manager Tom Lasorda completed his 28-man roster, naming 13 reserves. Lasorda added outfielders Lou Brock of St. Louis, Jack Clark of San Francisco, Dave Kingman of the Chicago Cubs Atlanta's Gary Matthews and Lee Mazzilli of the New York Mets; infielders Garry Templeton of St. Louis, Dave Concepcion and Joe Morgan of Cincinnati, Ron Cey of Los Angeles and Pete Rose of Philadelphia; and catchers Johnny Bench of Cincinnati, Bob Boone of Philadelphia and Gary Carter of Montreal.

One of three backup catchers will start for the NL in place of injured Ted Simmons of St. Louis, who won the spot in the fans' vote but is unable to play because of a broken wrist.

Templeton doesn't plan to attend the Game.

"If I ain't startin', I ain't departin," he said.

Templeton, who is among the league's top hitters with a .321 average, was angered by the selection of Larry Bowa of Philadelphia as the starting shortstop in balloting by fans. Templeton finished fourth in the voting.