While Peterson has been long pushing the issue, his last start may have finally forced the Mets hands. In a career high eight innings, he allowed just one run in six hits while walking none and striking 10 batters. The 10 strikeouts is also a career high.
In nine starts, Peterson is 1-4 with a 1.82 ERA, 0.961 WHIP, and an 8.6 K/9. He was the South Atlantic League leader in ERA.
Callahan, one of the three right-handed relief prospects received in exchange for Addison Reed, has not pitched since April 21st.
At the moment, there is no timetable for his return.