"We wanted to see how he was feeling," manager Brad Mills said. "He had to get some treatment and so forth and get some swings in the cage before we could put him in there."
Martinez, who started his 14th consecutive game in left field on Wednesday, entered the game hitting .283 with three homers and 18 RBIs in his previous 15 games and singled in his first at-bat. He has a team-leading 47 RBIs at the halfway point of the season.
"I'm feeling alright," he said. "I'm just a little sore. I just wanted to see if I was going to be able to go today. I'm not 100 percent, but I still feel like I can go out there and help the team. It doesn't bother me running, just swinging. It's not something I'm concerned about."