Whitlock (pectoral) was placed on the 10-day injured list Tuesday, Chris Cotillo of The Springfield Republican reports.

EDGE Analysis

Per Bill Koch of The Providence Journal, manager Alex Cora maintained that the pectoral injury isn't thought to be serious, but that they "don't feel he's going to be ready in the upcoming days." The move to the IL can be backdated to Monday, so Whitlock will become eligible to be reinstated Sept. 30 against Baltimore. If he progresses as hopes, the right-hander stands a strong chance to rejoin the Boston bullpen for the last four games of the regular season. Ryan Brasier was recalled from Triple-A Worcester to take his spot on the 28-man roster.