Locke surrendered five earned runs in 3.2 innings Friday, allowing six hits and three walks while striking out four batters. He struggled tremendously with his command, throwing 102 pitches (56 for strikes) in less than four innings. Locke has given up 21 earned runs in 26 innings over his last five starts. The Pirates are likely to remove Vance Worley from the rotation when Charlie Morton returns -- which could happen in the next week, but Locke is making the decision tough for management.