The club acquired minor league pitcher Steven Wright on Tuesday afternoon from the Cleveland Indians shortly before the 4 p.m. ET trade deadline. In exchange for the right-hander, the Sox sent first baseman Lars Anderson to Cleveland.
Wright has made 20 starts this season for the Indians' Double-A club in Akron. He's 9-6 with a 2.46 ERA in 117 innings pitched.
The 27-year-old was a second-round draft pick out of Hawaii in 2006. Wright became a knuckleballer after adding the pitch to his repertoire full time just a few years ago.
"His knuckleball is nasty," knuckleballer and former Indians pitcher Tom Candiotti told Cleveland.com earlier this year. "It's filthy."
Once a top prospect, Anderson leaves the Red Sox after spending his entire career in the Sox system. Anderson had short stints in the bigs over the last three years, but he has yet to put it all together.