OAKLAND, Calif. — Jason Giambi's second stint with the Oakland Athletics didn't pan out as either side had hoped.

On Friday, they parted ways for good.

Giambi was released by the A's, cutting short the struggling slugger's return to his first major league club. Giambi hopes to catch on with another team for a pennant push this season and prolong his 15-year career.

Giambi's aching body could make that tough. The 2000 AL MVP for the A's has been on the disabled list since July 20 with a strained quadriceps muscle.

The 38-year-old first baseman and DH returned to Oakland this season after seven pressure-packed years with the New York Yankees, agreeing in January to a one-year contract that guaranteed him $5.25 million.