Penrod (shin) will return from Triple-A Worcester's 7-day injured list to start Friday against Scranton/Wilkes-Barre, Christopher Smith of MassLive.com reports.
A 27-year-old lefty whom the Red Sox signed out of independent ranks last August, Penrod had been one of the organization's better upper-level starters before he landed on the IL on June 9 with left shin inflammation. He'll slot back into the Worcester rotation this weekend, but since he didn't head out on a rehab assignment beforehand, he could be limited from a workload standpoint in his return to the mound. Penrod has turned in a 2.91 ERA, 1.20 WHIP and 61:20 K:BB across 43.1 innings between Worcester and Double-A Portland this season.