The deal for the veteran outfielder is pending a medical review. It was not immediately clear what the Pirates will receive in return for McCutchen, who is due $14.75 million in the final year of his contract.
McCutchen, 31, hit .279 with 28 home runs and 88 RBIs last season. McCutchen compiled a .291 average with 203 home runs and an .866 OPS for the Pirates from 2009-17. He helped Pittsburgh reach the postseason three consecutive years beginning in 2013 and appeared in five straight All-Star Games beginning in 2011.
The Nationals acquired Kendrick, 34, from the Phillies on July 28 last season. In 52 regular-season games with the team, he hit .293 with an .837 OPS -- both higher than his career averages. He also filled a variety of roles in Washington's lineup, playing second base and outfield and also serving as the team's top right-handed bat off the bench.
Kendrick is a career .291 hitter with 104 home runs, 636 RBIs and 123 stolen bases in 12 seasons. He spent his first nine seasons with the Angels, making the 2011 All-Star Game.
The 29-year-old Reed agreed to terms on Saturday, according to multiple reports. Reed was 2-3 with a 2.84 ERA, 1.05 WHIP, 19 saves and 76 strikeouts in 76 innings between the New York Mets and Boston Red Sox last season.
Overall, Reed is 18-21 with a 3.40 ERA and 125 saves over seven seasons with the Chicago White Sox, Arizona Diamondbacks, Mets and Red Sox. He was originally a third-round pick in 2010 by the White Sox out of San Diego State.
--Hall of Fame umpire Doug Harvey died on Saturday at the age of 87, the Hall announced.
One of just 10 umpires enshrined in Cooperstown, Harvey worked the National League for 31 years, 18 of those as a crew chief. The Hall said Harvey had been in hospice care recently in Visalia, Calif. and had died of natural causes.
From 1962 through 1992, Harvey worked five World Series and 4,673 games during the regular season.
--Field Level Media