WASHINGTON (AP) _ The National Football League players' union has formally notified the league it will allow their current labor agreement to expire at the end of the 2000 season rather than extend it another two years.

The league and the union broke off talks in December on extending the agreement, including the current player salary caps, until 2002.

Gene Upshaw, the union's executive director, told The Washington Post Wednesday that the league was demanding unacceptable job concessions after signing a $17 billion TV contract that extends until 2002.

``We're not willing to do that unless they're willing to give us something in exchange, and so far they haven't been willing to do that,'' Upshaw said.

Joe Browne, a league spokesman, said he was not surprised by the union's decision.

``We have both known that's always been a possibility, and both sides have an option to cancel'' an extension, he said. Brown said team owners would ``consider the status'' of the labor agreement at a league meeting Feb. 18 in Dallas.