The six-player trade was finalized Saturday, the Yankees confirmed, and Nady and Marte arrived in Boston in time for a available for a 3:55 p.m. EDT game against the Red Sox.
Nady, originally drafted by the Padres in 2000, has become an emerging power threat over his six years in Major League Baseball -- three with San Diego, one-half season with the New York Mets and then 2 1/2 seasons with the Pirates. He has 75 career homers but 33 since April 2007.
Though Nady's contract does not expire until after the 2009 season, the Pirates seemed determined to unload either Nady or Jason Bay, in favor of Andrew McCutchen, a five-tool outfielder who is widely hailed as Pittsburgh's top prospect.
With Marte, the Yankees get a power arm with set-up and closing experience. In eight-plus years in the majors, Marte has posted strong numbers in both ERA (3.21) and WHIP (1.25). This season, Marte is 4-0 with a 3.47 ERA and 47 strikeouts in 46 2/3 innings. He also has 36 career saves, including the five he had earned recently as the Pirates' de facto closer, after Matt Capps was lost for a significant time.