Valencia, 27, has hit .260 (257-for-989) with 52 doubles, four triples, 24 home runs, 129 RBI, 106 runs scored and 63 walks in 273 career Major League games with the Twins over the last three seasons. The right-handed batter is 25-for-126 (.198) this season with six doubles, one triple, two homers, 17 RBI and 13 runs scored in 34 games for Minnesota in 2012 and hit safely in five of seven contests in his second Major League stint of the season since July 27. Valencia has also played in 69 games for the Twins Triple-A club in Rochester this season, batting .250 (67-for-268) with 17 doubles, a triple, seven homers and 37 RBI. He was originally selected by the Twins in the 19th round of the 2006 First-Year Player Draft.
Pineda, 21, has gone 56-for-133 (.421) with nine doubles, three triples, 22 RBI, 20 runs, five walks and 14 stolen bases in 36 games this season for the Rookie-level Gulf Coast League Red Sox, including 29 appearances in center field, four in left and one in right. A switch-hitter, he is leading the GCL in batting average. Over two professional seasons in the Red Sox organization, Pineda has hit .321 (75-for-234) with 11 doubles, five triples, a home run, 32 RBI and 20 stolen bases over 70 games between the Domican Summer League Red Sox and the GCL.
With today’s transaction, Boston’s 40-man roster is now at 40.