The Atlanta Falcons announced yesterday that three veterans, including former Redskins Joe Washington and quarterback Bob Holly, have been placed on waivers.

Tom Braatz, who handles most of the club's contract negotiations, said the team still has some interest in signing Washington, but not Holly or punter Ralph Giacamarro.

By NFL standards Washington is a free agent, although the Falcons retained his negotiating rights. The team was required to offer him a 10 percent raise in salary by June 1 or forfeit the signing rights. Washington, who earned $300,000 last year, said the Falcons were using the release as a ploy.

"They want to sign me for $250,000, and that is a show of disrespect," he told the Atlanta Journal. "It's a $50,000 cut. What did I do to deserve a cut like that?"

Washington, a 10-year veteran acquired from the Redskins before the 1985 season, caught 35 passes for 201 yards and ran 48 times for 201 yards for Atlanta. Falcons Coach Dan Henning has said he wants Washington back for 1986.

BOXING

Marvelous Marvin Hagler will sign for a rematch against Thomas Hearns before accepting a challenge from Sugar Ray Leonard, because "he's a very moral person," Hearns' manager predicted.

Manager Emanuel Steward said Hearns has already signed for the fight Nov. 6 at Las Vegas' Caesars Palace. "I have no doubt in my mind at all he's going to take the fight with Tommy first."

Hagler has promised to respond to Leonard's challenge sometime this month.

Steward said Hearns and Hagler had a contract to fight June 23, but Hagler asked to move it back to November after his 11 rounds with John Mugabi. Steward, in Scottsdale, Ariz., where Hearns is training to defend his WBC 154-pound title June 23 against Mark Medal in Las Vegas, said he and Hearns agreed, a "professional courtesy on our part."

BASEBALL

A. Bartlett Giamatti, Yale University's retiring president, reportedly will be recommended by a three-member search committee for the presidency of the National League, from which Chub Feeney is retiring.

Giamatti, who was considered for baseball commissioner two years ago, will be presented to the NL owners at a Monday meeting in New York and likely will be unanimously ratified, The New York Times said.

Before accepting the Yale presidency in 1978, Red Sox fan Giamatti kidded that all he ever wanted was to be president of the American League . . .

In the College World Series at Omaha, Mike Senne hit a three-run homer to cap Arizona's rally from a 5-0 deficit to a 9-5 victory over top-ranked Florida State. The Wildcats broke Seminoles ace Mike Loynd's winning streak at 17 games.

Arizona now is the only unbeaten team in the double-elimination tournament.

Loynd (20-2) was going for an NCAA Division I record for victories in a season, but allowed nine hits and left after Senne's sixth-inning homer. Arizona's Gilbert Heredia (16-3) survived 10 Florida State hits, including Paul Sorrento's second-inning grand slam.

Arizona will play defending champion Miami tonight after an afternoon Florida State-Oklahoma State elimination game.

GOLF

A self-imposed penalty for an infraction no one else saw kept Ray Floyd one shot out of the lead after the second round of the $600,000 Westchester Classic in Harrison, N.Y. Floyd (67) trails Willie Wood (63), Brett Upper (66) and Tom Sieckmann (66), tied at 8-under-par 134.

"The ball moved," Floyd said after addressing a short putt on the third hole. "That's a stroke."

Juli Inkster shot 5-under-par 67 for a two-round tournament record of 135 and a four-stroke lead over Mary Beth Zimmerman in the $450,000 LPGA McDonald's Championship at Malvern, Pa. . . . Chi Chi Rodriguez and Don January share the lead in the Senior Players ReUnion Pro-Am at Dallas with 66s . . . At Woburn, England, Briton Robert Lee shot 65 -- 134 for a one-stroke lead in the $300,000 British Masters. Seve Ballesteros (68) was at 135 and Bernhard Langer (68) at 136 . . . Chris Peddicord of Woodmont made 66 to win the Middle Atlantic PGA Pro-Am at Loudoun by two shots . . .

George Fazio, who won the Canadian Open in 1946 and went on to design golf courses around the world, died yesterday at 73, of cancer in Jupiter, Fla. Fazio tied Ben Hogan and Lloyd Mangrum for first in the 1950 U.S. Open, Hogan winning in an 18-hole playoff.

INTERNATIONAL

Officials signed a $69.5 million agreement for Seattle to stage in 1990 the second Ted Turner Goodwill Games . . . Juergen Schult set a world record in the discus, 243 feet 1/2 inch, the East German news agency reported from a national meet in Neubrandenburg. That would be a whopping 7-3 1/2 beyond the mark set in 1983 by Yuri Dumtschev, U.S.S.R.