Bukauskas allowed four unearned runs on one hit and three walks in Friday's 11-4 loss to the Giants.
This was Bukauskas' first outing after being activated off the 10-day injured list Thursday, and he threw just 16 strikes among his 30 pitches. After a walk, a double play and another walk, he nearly got out of the inning unscathed, but Nick Ahmed's throwing error kept the inning alive. One walk later, Thairo Estrada took Bukauskas deep for a grand slam. The young reliever is expected to remain with the Diamondbacks, who need to evaluate him as a possible high-leverage reliever going forward.