The San Diego Padres have purchased the contract of shortstop Jace Peterson from the San Antonio Missions (AA) and transfered starting pitcher Josh Johnson (Tommy John) to the 60-day disabled list. The need for an infielder was made last night, when third baseman Chase Headley suffered a calf strain. That particular injury forced Headley himself to miss almost all of spring training.
Peterson, 23, was hitting .311 with a home run and four steals for San Antonio this season. Peterson was drafted 58th overall in 2011 as compensation for losing starting pitcher Kevin Correia to free agency in the previous offseason. He has ranked around #6 or #7 on most lists of San Diego's top prospects.
The young infielder profiles as an excellent athlete with good contact and plate discipline skills. On top of this, Peterson is an above average base-runner. He stole 71 bases per 162 games as a minor leaguer. Baseball America wrote that he was the best defensive infielder in San Diego's minor league system. If he gets off to a hot start, he should see time hitting 2nd in the line-up.
The offense may have lost something in Headley (.186 with 2 home runs), they may have added more with the addition of Jace Peterson and a returning Cameron Maybin.