Headley rests ailing back in finale at Arizona

PHOENIX -- As expected, third baseman Chase Headley wasn't in the starting lineup on Wednesday, one night after he left a game with stiffness in his back.

Headley said he started to experience spasms in the lower right part of his back after his second at-bat in Tuesday's 10-9 loss to the D-backs in 10 innings.

"It's better than it was last night," Headley said Wednesday. "Last night and again this morning when I woke up, there were spasms. It's not great by any means."

Logan Forsythe made the start at third base in the series finale against the D-backs. Headley won't play at all in the game and will get an additional day of rest on Thursday as the team is off. The Padres will open a three-game series at Dodger Stadium on Friday.

"We'll see where we are when we get to L.A.," said Padres manager Bud Black.

Headley doesn't anticipate his back being a lingering issue beyond Thursday.

"It just needs a little time," he said. "But I don't anticipate it being more than a day or two."