With Cal Ripken Jr. back in Baltimore for hospital treatment, the Orioles got a comeuppance at Annapolis yesterday when Navy shortstop Mike Leeney lined a two-out, 3-2 pitch from Dennis Martinez for a tie-breaking double and a 4-3 exhibition victory.

Now the question is, can Ripken extend his iron-man streak -- 4,009 consecutive innings in 444 games -- in American League play?

Dr. Charles Silberstein, club orthopedist, said it would not be certain until three hours before tonight's 8:05 home game against Toronto. After X-rays showed no break, Silberstein fitted the shortstop with a custom-made brace for the left ankle injured Wednesday against the Texas Rangers; Ripken also had whirlpool therapy, and the doctor noted marked improvement.

At the academy, Leeney -- who had an RBI double in a two-run Navy first inning off Ken Dixon -- came up with a man on first in the seventh and final inning and drove Martinez's pitch over Jim Dwyer's head in left field. Approximately 9,000 applauded at Bishop Stadium as Navy senior Scott Wild won on an eight-hitter . . .

Ed Ott, ex-Pittsburgh Pirates catcher now rookie manager of their Class A Prince William club, came up a loser in last night's opener at Durham, 6-5 in 11 innings.