Tuesday, 4 a.m., in downtown Edmonton, Canada. A department store burglar alarm goes off. Police, with dog, enter.A man is spotted running around inside the store and trapped, allegedly carrying $2,000 worth of watches.

Police say he is Todd Cruz, Chicago White Sox shortstop on 20-day assignment to the Class AAA Edmonton Trappers to rehabilitate an ailing back. Hours earlier he had hit a home run against Spokane.

The White Sox, says General Manager Roland Hemond after flying to Edmonton and visiting Cruz, 25, after he is released on $1,500 bail, will let him play on, at least pending Cruz's court date in July. And will go ahead with plans to bring him back as soon as his back is better.

"We should approach this situation the way a parent approaches a problem with children," says Hemond. ". . . be helpful and kind rather than condemn. . . . He would have been our opening-day short-stop were it not for injuries . . . He said to me, 'I don't want to hide. I want to play'" . . .

St Joseph's U. keeps it in the family; promotes Jim Boyle, eight-year assistant and 1963-64 team captain, to replace Jim Lynam -- and inherit a 25-8 basketball team that graduates only two . . .

NBA: Knicks deal first-round pick No. 17 in June 9 draft to Cleveland for Randy Smith. While Smith has career 18.2 scoring average (14.6 last season) and longest active playing streak, 758 straight games, Knicks so bountiful at guard he could be trade bait anew . . . Larry Bird apologizes for being offensive, profanely, to Moses Malone. Says crowd influence at Boston City Hall Plaza celebration carried him out of bounds . . .

Will Fernando Valenzuela pitch Saturday on NBC against the Reds? Edge needn't be rubbed off just because the L.A. ace finally lost, 4-0, to Philly Monday night; only Mike Schmidt's HR and a two-walk, two-single rally kept him from a perfect seven innings.

Strike up a June tune for the third Kemper Open at Congressional, in 1982. It's moving on the PGA Tour calendar, we hear, after serving as May windup in '80 and '81. Jack Nicklaus' Memorial tournament in Ohio probably will stay the week before the Kemper by sliding, too. The change will put the Kemper only two weeks before the U.S. Open, as in '80, instead of the three-week gap that may (or may not) have made the '81 event here less engaging to a few top players.