Geren said outfielder Coco Crisp took 30 swings off of a tee Sunday and his injured left pinky "feels well." Crisp, who signed a one-year, $ 5.25 million deal this offseason, is yet to play in an Oakland uniform.
A's second baseman Mark Ellis continues to rehab his strained left hamstring in Arizona and took part in lefty Josh Outman's simulated game on Saturday. Geren said he didn't receive a full report about Outman's outing, but he assumed nothing bad happened.
"I'm sure it went fine," Geren said.
The Oakland rotation also received some encouraging news, as lefty Brett Anderson and righty Justin Duchscherer are recovering as planned.
Anderson is on day three of his recovery plan and played catch on flat ground from 80-100 feet Sunday, while Duchscherer will throw off of a mound Monday before the A's head to Texas to start their six-game road trip against the Rangers and Angels.
Geren said Duchscherer could rejoin the A's rotation in Anaheim. Duchscherer is eligible to come off the 15-day disabled list on Saturday.
"Everybody's progress is rolling the right way," Geren said.