Ellis, who hasn't played since injuring his right shoulder while breaking up a double play last Thursday in Seattle, missed his fifth consecutive game in sitting out the finale of a three-game series against the rival Angels. It's not out of the realm of possibility that he'll also miss the four-game series against the Twins that opens Thursday in Oakland.
"He's still not ready," said A's manager Bob Geren. "It's gonna be at least another couple of days."
Ellis said his shoulder has been feeling better when he wakes up each day, but when he tried to play some catch Tuesday, it didn't feel quite right.
"We shut him down," Geren said.
In missing the Angels series, Ellis missed out on playing the team he's taken deep more than any other. The Halos have surrendered 10 of Ellis' 70 career homers.
Mychael Urban is a national writer for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.