DODGERS NOTES : GAGNE PUTS ERRORS BEHIND HIM.

Greg Gagne, Dodgers savior and shortstop, made two errors Friday. Then he made two errors Sunday. Then he came home to the same 53,180 people who booed the last shortstop into Kansas City.

Remember, this is the guy who, offered a two-year contract, signed for one year instead because he wasn't sure if he would like Los Angeles. Ironic, then, that he was introduced Monday afternoon, wondering if the town would like him.

Asked if he was curious about the reception, Gagne smiled and said, ''No. I don't know. Well, a little bit, probably. Yeah.``

Remember, too, that among Gagne's closest friends is Gary Gaetti. Gaetti had some defensive problems not far from here, and he, too, ended up in Kansas City.

''I got off to kind of a slow start last year, defensively,`` said Gagne, who had 18 errors last season. ''I don't like the beginning of things, anyway. I like the middle and the end.

''It's the kind of thing you just have to go through. It kind of stinks while you're going through it, but you put up with it. Whatever happened in Chicago, that's done away with. But, I'll tell you, it isn't fun at the time.``

f=Zapf Dingbats f-b f-iof=Swis721 BT f+b f-iSingle-minded Piazza:o Mike Piazza is hitting .441. Four-forty-one. He is 15 for 34.

He has 15 singles. Infield singles. Flares. Bloops. Liners. Grounders. Name 'em, he's got at least one.

The man has 156 extra-base hits in barely three years, and suddenly he's Felix Millan.

''I'm trying,`` Piazza said with a laugh. ''I guess you can get someone else to try, but I'm trying. I guarantee by the end of August I'll be screaming for those singles.``

Piazza's lack of pop has become something of a joke around the clubhouse, especially after wins.

''I'm going to get on him a little bit,`` second baseman Delino DeShields said. ''Your average is high enough, now it's time to get airborne.``

Said Piazza: ''I agree with him. I just wish my bat would cooperate. I guess I'm a Punch and Judy hitter.``

Notes: In his second rehabilitation assignment, left-hander Scott Radinsky pitched 1 innings for Class-A San Bernardino on Sunday. He allowed a run on two hits and a walk. Radinsky, from Simi Valley, is eligible to come off the disabled list on Friday.... Kirk Gibson, among the heroes of the Dodgers' 1988 World Series championship, threw out Monday's ceremonial first pitch. Nearly eight years later, he did not limp to the mound.... The game time temperature was 78 degrees. Counting the wind-chill factor, that's 66 degrees warmer than it was in Chicago this weekend.... Of the 310 media credentials issued for Monday's game, 109 were for the Japanese press.

SOURCE: - Tim Brown