TORONTO -- For the first two games of Oakland's series against the Blue Jays at Rogers Centre, the A's starting lineup was posted inside the visitor's clubhouse hours before game time.

On Sunday, though, the lineup was noticeably late.

"Just waiting to see if Eric [Chavez] could play," Oakland manager Bob Geren replied, when asked about the holdup.

And the good news for the A's is that the third baseman was penciled into the starting lineup for the first time since April 12. Chavez has been sidelined because of a sore right shoulder, which he jammed diving back into first base on a pickoff play last week.

Chavez was pronounced ready to go after testing out his arm before the game and taking swings in the batting cages with Geren.

The third baseman finished the day 0-for-4 in the A's 1-0 loss to the Blue Jays.

While one Oakland player did make it into the lineup, another could not, as Nomar Garciaparra is still bothered by tightness in his right calf. Garciaparra noticed the tightness toward the later innings of Friday's series opener, when he served as the designated hitter, but was still able to complete the game. He did not play Saturday.

Geren ruled out a potential trip to the disabled list for Garciaparra and said he was considered day-to-day.

"He feels better today than [Saturday]," said the manager. "He's made improvement since yesterday."