BASEBALL MISCELLANY : NAMES AND NUMBERS:

Jack Clark: If he is going to be an influential factor in the New York Yankees’ bid to catch the Detroit Tigers in the American League East, he will have to change his pattern. He averaged 16 first-half homers a year from 1984 through ‘87, but only 4 a year in the second half.

Mike Laga: In the wake of Clark’s departure, Laga became the 10th player to appear at first base for the St. Louis Cardinals this season.

Frank Viola: The Minnesota Twins are 16-3 in games Viola has started this year and 33-36, through Friday, when he has not.

Mike Schmidt: The Philadelphia Phillies’ third baseman, slumping through most of the first half, says he wants to play next season, when he will be paid $2.25 million. The Phillies can buy that out for $350,000. “I’m pleased he wants to play,” club president Bill Giles said, “but it’s a two-way street. He wants to come back, but we have to say if we want him back.”

Mike Boddicker: Since ending his 13-game losing streak in mid-May, the Baltimore Orioles’ pitcher has enhanced his trade value by going 5-3 with a 2.63 earned-run average in 11 starts.

Pittsburgh Pirates: Their second-half hopes are based on the fact that Mike Dunne, Doug Drabek and Brian Fisher were a combined 26-9 over the second half last season but only 16-18 over the first half this season. The Pirates, however, are concerned about Barry Bonds’ suddenly ailing knee. Surgery may be required.

Ernest Riles: The San Francisco Giants’ storied history includes the names of Willie Mays, Willie McCovey, Orlando Cepeda and Will Clark, but it will be Riles’ bat that goes to the Hall of Fame for hitting the 10,000th home run in franchise history in the 21-2 rout of St. Louis last week.

In the same game, Chris Speier, 38, became the third-oldest player in major league history to hit for the cycle. Only Cy Williams, 39, of the 1927 Philadelphia Phillies and Honus Wagner, 39, of the 1912 Pittsburgh Pirates were older.