Karstens said that the "cranky" sensation in his pitching arm that prompted the Pirates to keep the right-hander out of his last start has subsided entirely. Karstens was able to go through his normal routine -- side session, exercises and light throwing -- over the past four days to get ready for his return.
"We'll see how it goes tomorrow," Karstens said, prior to the Pirates' series opener on Monday.
When Karstens takes the hill on Tuesday, he'll do so looking to snap an 11-game winless streak that goes back to June 19. During those past 11 starts, Karstens is 0-8 with a 5.22 ERA. Opponents have batted .315 against him during the stretch.