Justin Morneau has posted 221 home runs and 860 RBI over 11 years with the Twins. (Leon Halip/Getty Images)
The 32-year-old Morneau is hitting .259 this season with 17 home runs -- including 10 since the All-Star break -- and 74 RBI. Pittsburgh had been linked to Morneau since before the July 31 non-waiver trade deadline, looking to boost an offense that ranks 10th in the National League in runs per game.
The Pirates can plug Morneau, a four-time All-Star and 2006 AL MVP who has battled concussion symptoms and other injuries, in at first base and move Garrett Jones to a corner outfield spot opposite recently acquired right-handed hitter Marlon Byrd.
Fox Sports' Ken Rosenthal first reported the news.
The Pirates will also send a player to be named later or cash to Minnesota, according to CBSSports.com's Jon Heyman.
Presley, a seldom-used outfielder who the Pirates drafted in the eighth round in 2006, is hitting .264 with two home runs in 29 games this season and .261 with a .718 OPS for his career.
victory over the Cardinals on Friday