Managers always worry. Even when they are already in the World Series, a pennant safely won.

Listen to Detroit's Sparky Anderson and San Diego's Dick Williams, who were holding court behind the batting cage before tonight's third game of the World Series.

Anderson: "I'm worried about our hitting. We haven't hit well for four games now. We won the last two with Kansas City, but didn't hit (four runs total) and we were lucky to win the first game against San Diego.

"The way the World Series is, if you go cold for five days it can be over for you before you know it. We need to get hot again. I hope we start hitting again in this park."

Williams: "You have to get lucky picking players this time of year. You hope you have the hot bat in the lineup. In '72, when I was with Oakland and Reggie (Jackson) got hurt in the playoffs, I played a hunch and went with (Gene) Tenace. It worked out (Tenace was MVP with four Series homers).

"This year I went with Bevacqua even though he hadn't had that good a year. So far, it's worked out, but you never know."

People often forget that Williams did not manage the 1974 Oakland Athletics after managing them to world championships in 1972 and 1973. Tonight, when someone asked Williams how good his 1974 team was, he laughed, realizing the error the questioner had made.

Noting he was managing the California Angels at the time, he told his questioner, "Oakland was a hell of a ball club."

With the Padres' Steve Garvey, a former Michigan State cornerback, in town, school officials brought out football uniforms for Garvey and the Tigers' Kirk Gibson, another ex-Spartan football player, to pose in.

Garvey on his football career: "When I got to Michigan State, I was 6-3 and weighed 220. Now look at me (he is listed at 5 feet 10 but his teammates on the Padres swear he is 5-8). That's what football did to me. When I got drafted by the Dodgers, I decided it was time to use all that education. I signed with them and quit football."

The highlight of Garvey's career: "Tackling O.J. Simpson three times in one game."

Gibson, who doesn't shave for days at a time in order to look mean, had gone cleanshaven for almost a week until the Tigers lost Wednesday in San Diego. Tonight, he showed up with three days' worth of beard . . .

Jeff Torborg of the New York Yankees' coaching staff reportedly interviewed today for the Seattle Mariners' vacant managing job . . . Willie Hernandez, the star Detroit relief pitcher, is a free agent at the end of the season. Negotiations with the Tigers are not going that well and Hernandez says his return to Detroit is "50-50" . . .

Boosterism: the bottom half of the front page of the Detroit Free Press sports section was dominated this morning by an ad promoting the upcoming book, "The Tigers Roar." It is a chronology of their '84 season as written by the paper's staff . . .

Champ Summers, the Padres' reserve who once hit 20 home runs playing for Detroit, caught a lot of flak in the batting cage tonight as his attempts to reach the right field bleachers kept falling short.

"Broken bat," Summers said after one pop-up. He tossed another one away after another pop.

"Take a rest, Champ," Graig Nettles, suggested. "You're getting old." Summers is 36. Nettles is 40 . . .

If the Tigers are the hottest ticket in town, what is the coldest? How about the Wayne State University football team, which plays at home Saturday, two miles from Tiger Stadium? Admission is free. The school hopes to draw 300 people.