"When Derek came in this morning, he looked like he didn't have a lot of energy," Bogar said. "The conversation I had with him led me to believe he wasn't confident in his ability to go out there and compete."
Holland is 2-0 with a 1.31 ERA in five starts since he came off the disabled list at the beginning of September. He missed the first five months of the season while recovering from offseason knee surgery.
Martinez entered the day 5-11 with a 4.61 ERA. But he had won his last two starts and had a 2.12 ERA in his last five starts. He was also 1-0 with a 2.30 ERA in his first three outings against the Athletics.
"If I went with my heart, I would go with Derek," Bogar said. "But my brain says Martinez. I know Derek wanted to pitch against the A's, especially with the meaning of this game. But it's good to get Nick one more start and allow us to evaluate him some more."
T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields, and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.