Rockies Gold Glove shortstop Troy Tulowitzki, struggling in the field, was held out of the starting lineup Wednesday night against the Padres. Manager Jim Tracy said it was a planned day off, but Tulowitzki admitted that his recent string of errors has gotten inside his head. "I'm scuffling right now. It's tough. I think about it," he said. "It's frustrating. I feel like I let my teammates down. But it is what it is. It's how I respond to it and get out of it that's going to make me a better player."