Cardinals right fielder Carlos Beltran is dealing with a right knee condition that is both a byproduct of past knee surgery and plantar fasciitis affecting his right foot. Resulting discomfort kept the National League home run leader out of the lineup for a second straight day and has clouded his long-term availability to play center field.

"Right now, we're taking it day by day," Beltran said before Wednesday's series opener against the San Francisco Giants. "Every day it's getting better, but it's not better to the point where I feel I can go out there and play the game to the level that I want to be out there."

Beltran, just named National League player of the week, says he is not bothered by knee discomfort at the plate but is compromised in the field and running the bases.

"The game is (about) making impact — playing the outfield and running the bases. In order for me to be ready I have to make sure I'm ready to play defense and move myself around the bases," he said.