"It shook me up a little bit for sure," he said Tuesday. "My knees took the brunt of it, although I didn't feel that at the time. It jarred my back more than anything. There was a little pinching going on there. I woke up this morning and felt it in my calf."
He was in the lineup on Tuesday, and made another standout, wall-crashing catch in the first on A.J. Pollock's fly ball, slamming into the outfield fence.
"As long as he catches it and you come up healthy, [it's OK]," Cubs manager Dale Sveum said.
Gillespie needs to work on his timing.
"That's the way I like to play," he said of his aggressive style. "Next time, I'll slide a little earlier so I don't go full speed into it. ... If you're going to make a web gem, it's worth it. Just slide earlier."
Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.