In an effort to upgrade their bullpen, the Yankees have discussed a three-way trade with Pittsburgh and Atlanta, the basics of which would send Melky Cabrera to the Braves, bring Pirates closer Mike Gonzalez to the Bronx and give Atlanta first baseman Adam LaRoche to the Pirates. A person familiar with the situation confirmed the talks. However, Pirates general manager Dave Littlefield is in a position of strength; he doesn't have to trade the lefthanded Gonzalez, who converted 24 of 24 save opportunities in 2006. Gonzalez, 28, is eligible for arbitration, but the Pirates can afford to keep him. A slew of other clubs, including the Red Sox, have interest in Gonzalez; Boston probably would deploy him as a closer.