Headley does not start for Padres

San Diego third baseman Chase Headley did not start Tuesday's game at St. Louis due to what manager Bud Black called, ''a lower back issue.''

Headley has started 42 of the Padres' 43 games. The switch-hitter is batting .245 with five homers and 20 RBI.

Black said Headley might be available to pinch hit.

''We want to let this calm down a little,'' Black said.

Headley was 1-for-4 with a double in Monday's 4-3 loss at St. Louis.