Bello has been shut down after feeling soreness in his right forearm during his last bullpen session, Alex Speier of The Boston Globe reports.
Red Sox manager Alex Cora said it's "nothing to alarm" and that there are no current plans to have imaging taken of Bello's arm. "We're very confident Monday he's back on his throwing program," Cora added. It's good to hear that the club is optimistic this isn't a long-term concern, but any arm-related issue obviously is a little worrisome. More should be known about Bello's status next week.