Gibson is looking to bounce back, as he struggled his last time out, allowing five runs in 5 1/3 innings against the Indians. He had a rough August, posting a 5.28 ERA in five starts.
Keuchel struggled earlier this year at Minnesota, allowing three runs on six hits and four walks in a loss on April 10. But since June 16, he's 7-2 in 14 starts with a 2.74 ERA, including six innings of three-run ball in his last start vs. Oakland.