Boof Bonser twirls four innings of scoreless ball in rehab stint

When Boof Bonser last pitched during his first rehabilitation assignment with the Pawtucket Red Sox on April 13, he lasted only two innings and allowed nine earned runs in a 12-0 loss to Lehigh Valley.

He subsequently was placed on the disabled list by Boston because of pain in his right shoulder, but Bonser didn’t exhibit evidence of that problem Wednesday night in the first game of his second rehab assignment.