SANDERS: Deion Sanders is on the verge of signing a contract with the Yankees that would delay his return to the NFL's Falcons until October, the Atlanta Journal reported. The newspaper quoted sources as saying the contract will pay Sanders a base salary of $1 million for 1991, plus as much as $1 million in incentives.

OUCH: Yankees 1B Don Mattingly was placed on the DL with an ailing back. George Steinbrenner reportedly ordered the move. "If he's out the rest of the season, it's not going to make a difference," Steinbrenner was quoted as saying in USA Today. "I said, 'I just don't want you walking around a cripple when you're 50 years old.' " . . .

Reds 2B Mariano Duncan may miss a week with a sprained wrist. . . . Giants P Jeff Brantley was hospitalized after injuring his back in a simulated game.

TRADE ME: Mets say they'll send disgruntled 1B Mike Marshall to the Red Sox for three minor-leaguers effective today. . . . P Walt Terrell, released by the Pirates, will sign with the Tigers.

NO CHARGE: No charges will be filed against Angels OF Luis Polonia, accused of assaulting a teenager before a game at Oakland. Polonia said he gave the fan "a little push," after being taunted with remarks about his conviction for having sex with a minor last year.