"We thought he was pretty close," D-backs manager Kirk Gibson said. "I asked him after the game [Friday] if he thought he'd be ready to go, he thought he would and then he came out and ran today and he's just not where he needs to be."
Pollock first felt tightness in the groin last Tuesday when he rounded third base in the sixth inning. He stayed in the game and wound up delivering the game-tying homer in the eighth inning.
"It's just like that last gear you try to get to, it's kind of grabbing," Pollock said. "I'm probably at about 80 running. I went out there and tested it with all the trainers and stuff. They kind of wanted me to take another day. I was ready to go. I told them, 'If you guys are OK with me going 80, maybe 85 percent, then I'd like to play.' It's frustrating. It's the worst not being able to play."
Pollock missed the team's four-game series with the Cubs last month with a strained neck and he was not happy to once again be unable to play.
"Hopefully I can get over this and not have to deal with anything ever again this year," he said." It's not a big deal. It really isn't. But in my head right now it kind of [stinks] not being able to be out there."
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.