"I don't know about the first day," Ventura said.
Gavin Floyd seems like the logical choice to open the second half, especially with his 3-1 record and 1.37 ERA over his last four starts. But rookie Jose Quintana might be a better choice, leaving Floyd to pitch Monday in Boston and then Saturday in Detroit.
Floyd has a career 3-0 record at Fenway Park and is 7-0 against the Red Sox. He has a 4-1 mark at Comerica Park and is 7-2 lifetime against the Tigers.
Pitching coach Don Cooper wasn't sure if Peavy's All-Star selection, announced in the eighth inning of Sunday's 11-9 loss to the Blue Jays as a replacement for the Angels' C.J. Wilson, would affect the rotation plan.
"I'm sure we will talk about it and come up with a decision," Cooper said.