The New York Mets can start stocking a supply of black bats--George Foster model--and swing out after an NL East pennant, if they'll commit a few of those Doubleday millions to keep the user of same happy.

The Cincinnati Reds reached agreement in principle yesterday to trade left fielder Foster to the Mets, reportedly for three players (pitcher, catcher, outfielder?). That left it up to the 1977-78-79 National League RBI and '78-79 home run champion, tattooing right along last year--.295, 22 HR, 90 RBI in a short season--and at 32, likely yet in his prime. He must work out a contract or no deal.

Foster reportedly sought $1 million annually, multiyear, from the Reds plus a $1 million interest-free loan, or he'd play out his option in '82. If he gets what he wants from New York, Cincy retains just two cogs of the 1970s Big Red Machine--Bench and Concepcion--and, with Griffey and Collins now Yankees, Gotham has the whole outfield of last year's (unrequited) top winning team in the NL . . .

Florida State's basketball coach, Joe Williams, has told a special university committee investigating senior James Bozeman's claims he was given drugs so he could play hurt (before he quit in December) that he never forces anyone to play who declares he can't perform--"but at the same time, I expect them to be in therapy if they can't." Team doctors stated: "The medical treatment of James Bozeman while at FSU has been in accordance with the best standards of orthopedic care." Bozeman never was given anything stronger than aspirin or Tylenol except when he was hospitalized for an Achilles' tendon injury, they said; one cortisone shot for tendinitis--after which he didn't play in a game for four days . . .

Ted Marchibroda sure wasn't out of work long. Ex-Bear offensive coordinator, ex-Colt head coach, ex-Redskin top offensive aide pops back as offensive coordinator/quarterback coach in Detroit; Coach Monte Clark reassigns "conservative" Bob Schnelker . . .

Racetrackers hereabouts will miss Wilhelmina Trueman; she would have been 89 next week, had she survived the illness that took her yesterday in Southern Maryland Hospital.

"Queen Wilhelmina"--well, on her 74th birthday, a 20-to-1 shot she trained won Bowie's Queen Wilhelmina Purse--took out her Maryland thoroughbred trainer's license at age 70 and at least as late as 1970, when she was 77, she had a nine-horse stable going. Seven decades she was associated with the sport, beginning when she married Elmer Trueman, a trainer-breeder. When he died 50 years later, in 1963, Wilhelmina stepped right in with her new license. She had tales to tell--a favorite, how she walked a horse from Baltimore's Pimlico to old Benning (D.C.) track to avoid sheriff's foreclosure over unpaid feed bills . . .

Mrs. Trueman never had a horse like Nashua, dead now at 30. At Spendthrift Farm, Lexington, Ky., humanely destroyed after incurable complications of old age set in. Last year, at 29, the 1955 Preakness and Belmont victor, first $1 million stud syndicatee and sire of 85 stakes winners, still was servicing. They buried him in front of Spendthrift's U-shaped barn, "Nashua Motel," and a bronze sculpture will remind how he came back after losing the Kentucky Derby to Swaps to win two legs of the Triple Crown, then beat (sore-footed, that day) Swaps in a famous Chicago match race . . .

What's going on here? Washington Area Lacrosse Clinic (high schools), 8-10 a.m. Saturday, St. John's High . . . Brookland Club's 18th annual awards banquet Saturday evening, U. of Maryland Adult Education Complex; honors chiefly for defensive excellence in football, to Clinton Boys Club No. 100, De Matha end Rogers Alexander, Navy middle guard Tim Jordan, McNamara Coach Frank Neitzey, Redskin Dave Butz, Model School for Deaf A.D. John (Pat) Parker . . . Golden Gloves boxing, Friday-Saturday evenings, Hillcrest Heights Boys Club. Dave Jacobs has another touted, internationally experienced prospect in 156-pound Ray Carroll (142-5) . . .

A. NCAA Division I basketball scoring, at 135.38 points a game through midseason, is lowest since national average of 126.57 in 1952 . . . Q. Babe Ruth nicknamed his black bat???