Josh Beckett's right shoulder is sore enough that the Red Sox pitcher will have to spend some time on the disabled list.
Beckett was put on the 15-day DL on Saturday, with reliever Clayton Mortensen due to take his spot on the big league roster, NESN's Jenny Dell reports.
Beckett was first scratched from his scheduled start — Sunday night in Chicago — when manager Bobby Valentine said Beckett was dealing with inflammation in his right shoulder.
Franklin Morales will start in Beckett's place on Sunday.