The St. Louis Cardinals acquired pitcher Justin Masterson from the Cleveland Indians in exchange for outfield prospect James Ramsey on Wednesday. Masterson, a towering right-hander at 6-foot-6, has gone just 4-6 with a 5.51 earned run average over 19 starts this season. He has been sidelined since July 7 thanks to right knee inflammation, and was placed on the disabled list one day later. The 29-year-old veteran was scheduled to be activated from the DL on Friday, and is expected to join the Cardinals when they return to St. Louis that day, before making his National League debut on Saturday against Milwaukee. Born in Jamaica but raised outside of Dayton, Masterson departs northeast Ohio with a 48-61 record, 4.23 ERA and seven complete games since arriving in July 2009 from the Red Sox. The 2013 All-Star also pitched parts of two seasons in Boston and owns a career mark of 57-69 with a 4.16 ERA. Ramsey has spent the entire 2014 season with Double-A Springfield, where he has batted .300 while collecting 13 home runs, 14 doubles, 36 RBI and 47 runs scored over 67 appearances. St. Louis also announced that pitcher Michael Wacha was transferred from the 15-day to the 60-day disabled list, and that a corresponding 25-man roster move will be made prior to Friday's contest.