Ryan Thompson Injury: Throws bullpen session

Thompson (shoulder) threw a 25-pitch bullpen session Thursday, MLB.com reports.

Thompson, who is dealing with a strain of his lower right trapezius muscle, threw his second bullpen in three days. Arizona manager Torey Lovullo noted the right-hander has responded well to the work, but his return date remains uncertain. Thompson last pitched for the Diamondbacks on July 4.