The Orioles acquired slugging third baseman Mark Reynolds and a player to be named later or cash considerations for relievers David Hernandez and Kam Mickolio, announced the team.

Reynolds' stock is at a low point after he hit .198/.320/.433 with 32 home runs and 211 strikeouts this year in 596 plate appearances for Arizona. However, he mashed 44 home runs in '09 despite whiffing 223 times. Reynolds owns the first three spots on the single-season strikeout all-time leaderboard. He was locked up by former D'Backs GM Josh Byrnes in March and is owed $5MM in '11 and $7.5MM in '12 with an $11MM club option for '13.

As a reliever, the 25-year-old Hernandez posted a 3.16 ERA, 10.9 K/9, 3.2 BB/9, and 0.97 HR/9 in 37 innings this year for the Orioles. He's a hard-throwing flyball pitcher who the Diamondbacks view as their seventh/eighth inning guy.

Mickolio, 26, is another hard-throwing right-handed bullpen arm. He came to the Orioles in the February '08 Erik Bedard trade. He's less established than Hernandez, with only 25 Major League innings to his name. Mickolio posted big strikeout numbers in 35 1/3 Triple-A innings this year but also allowed tons of hits, leading to a 6.37 ERA. He's dealt with various arm injuries the past few years.

Kevin Towers and Andy MacPhail last matched up on the Cla Meredith–Oscar Salazar swap from July of '09.

SI's Jon Heyman first reported the trade was close, with ESPN's Buster Olney, Ken Rosenthal of FOX Sports, MLB.com's Steve Gilbert, and the Arizona Republic's Nick Piecoro adding details.