The Texas Rangers this morning announced that the club has acquired right-handed pitcher Clayton Blackburn from the San Francisco Giants in exchange for minor league infielder Frandy De La Rosa. Blackburn has been added the Rangers' 40-man roster and optioned to Triple-A Round Rock.
 
Blackburn, 24, has made one start for Triple-A Sacramento this season on April 8 vs. Tacoma (3.0 IP, 6 H, 5 R-ER), and he was designated for assignment on April 11. He is still seeking his first major league action, although he spent a three-day stint with the Giants in 2016 without an appearance, and has pitched exclusively with Sacramento since reaching the Triple-A level at the age of 22 in 2015. Currently in his seventh professional season, Blackburn has a 3.30 ERA, 1.155 WHIP figure, and 8.3 strikeouts per 9 innings in his minor league career. He was born in Amarillo and graduated from high school in Edmond, Oklahoma.
 
De La Rosa was originally acquired from the Cubs in a November 20, 2015 trade for right-handed pitcher Spencer Patton. He spent last season at Low-A Hickory, and opened the season with the High-A Down East Wood Ducks, batting .107 (3-28) over his first 8 games.
 
After this trade, the Rangers now have 39 players on the club's 40-man major league roster.