The Orioles have acquired Josh Horton from the Athletics for cash or a player to be named later.

Horton, a minor league infielder, is hitting .224/.246/.373 this season at Triple-A.

The Kansas City Royals have traded Triple-A Omaha third baseman Brandon Wood to the Baltimore Orioles.

Wood will report to Triple-A Norfolk.

The Yankees have announced they have acquired infielder Chris Nelson from the Rockies in exchange for cash considerations or a player to be named later.
 
Nelson, 27, appeared in 21 games with the Rockies this season before being designated for assignment on April 28, batting .242 (16-for-66) with one double, two triples and four RBI. He made 19 starts, all at third base, committing three errors in 48 total chances. He is a career .279 (172-for-616) hitter with 33 doubles, six triples, 13 home runs and 73 RBI in 212 games over parts of four seasons with the Rockies (2010-13).

In a corresponding move to make room on the 40-man roster, C Francisco Cervelli was transferred to the 60-day disabled list.