BALTIMORE, JUNE 8 -- Jim Leyritz made his major-league debut for the New York Yankees tonight. It was a game the young third baseman will never forget.

Leyritz's bad throw to the plate in the 10th inning allowed Randy Milligan to score the run that gave the Baltimore Orioles a 5-4 victory before 44,347.

With two out in the ninth, Leyritz batted for Wayne Tolleson and stroked a game-tying, two-out single to left off Gregg Olson. It marked the first blown save of the season for Olson and made a temporary hero of the converted catcher who was called up today from Columbus of the International League.

The victory was the Orioles' third straight, sixth in the last seven. For the struggling Yankees, it was the seventh defeat in a row, 12th in 13.

It made Stump Merrill's record as Yankees manager 0-3, and Merrill said, "Somehow you have to get a game like this out of your system. It'll take me quite a while."

Not much went the Yankees' way from the time a sudden shower terminated their batting practice after just 15 minutes. Once the game began, starting pitcher Mike Witt was able to throw only 25 pitches before he felt a pop in his elbow and had to leave.

The first of six relievers, left-hander Greg Cadaret, had a terrible time in the third inning, yielding a pair of surprising home runs.

After second baseman Steve Sax committed the first of the Yankees' two costly errors, Bill Ripken lofted a homer into the first row in left field. It was his first career homer in 585 at bats at Memorial Stadium, his seventh overall.

Bradley, who had four hits, followed with the Orioles' first inside-the-park homer in almost 14 years. Right fielder Jesse Barfield, whose 11th homer had given New York a 2-0 lead, dove for Bradley's liner and missed it, the ball rolling to the wall as Bradley circled the bases. Like Ripken, Bradley was hitting his first home run of the season.

"The way I've been hitting, that's about the only way I was going to get one," Bradley said. "It's an exciting play and that's the first time I've ever had one in my career."

Al Bumbry had the Orioles' last such homer in Chicago in 1976; he also had the last one here, in 1974.

Both teams exhibited some timid base running thereafter and paid a price. The Yankees pulled even briefly in the sixth on Matt Nokes's two-out single, but the Orioles got it back in the bottom half on a two-out single by Craig Worthington.

Mark Williamson, the third of five Baltimore pitchers, retired pinch hitter Steve Balboni on a fly ball to strand runners on first and third in the seventh. Then he worked a one-two-three inning in the eighth.

Still, Manager Frank Robinson summoned Olson to pitch the ninth, his sixth such assignment in seven days.

When Randy Velarde grounded out and Deion Sanders fanned, it appeared to be just one more Olson magic show. But Sax punched a single to right and up came Leyritz.

After fouling off two tough pitches, Leyritz poked one of Olson's patented curves to left and the game was tied.

"I really felt great," Leyritz said. "Facing the top reliever in the league, I had a lot of adrenaline flowing. The guys in the dugout told me what he throws and I was mainly looking for a curve ball.

"I was a little anxious on the first couple of swings and then he threw a fastball that just missed outside. But he gave me a curve that was up enough so I could hit it and you can't expect much more from your first major league at bat."

"We knew he {Olson} was human and some day he wouldn't get a save," Robinson said. "I'll take 14 and one every time. I'm just glad we came back and won the game."

Right-hander Alan Mills, who accompanied Leyritz here from Columbus, pitched the ninth inning and survived despite two hits, a walk and three line-drive outs.

Brian Holton, Baltimore's fifth pitcher, enjoyed a one-two-three inning in the 10th and Mills quickly got himself in more hot water.

Randy Milligan walked and Bob Melvin sacrificed him to second. Merrill chose to walk Worthington intentionally and Robinson sent Chris Hoiles up to bat for Bill Ripken. Mills walked him to fill the bases and Merrill replaced the right-hander with lefty Lee Guetterman, although the batter was Bradley, a right-handed hitter who had gone four for four.

"That 2-2 pitch to Hoiles -- I don't know how he can take that ball," Merrill said. "But he got the walk, so I guess he knew what he was doing.

"I don't want to put Mills in his first appearance up against the wall when a vet can sink it and get a ground ball. We get the ground ball and unfortunately, we can't execute it."

Bradley hit a sharp grounder to the right of Leyritz, who backhanded the ball and elected to throw home for a force. But the ball bounced in front of catcher Nokes and rolled away as Milligan scored.