Burrows (shoulder) has recently progressed to throwing from approximately 120 feet, Justice delos Santos of MLB.com reports.
Burrows has been unavailable for nearly a month due to his shoulder injury, but it's encouraging he's been cleared to resume throwing. The right-hander has also been throwing off a mound, and the Pirates hope that he'll be able to return to make another start at Triple-A Indianapolis prior to the end of the regular season.