Robby Hammock was expected to join Arizona tomorrow for a three-game series at San Diego, but manager Bob Brenly said Hammock instead will appear in three games for Single-A Lancaster Friday through Sunday.
Hammock hit .353 in seven games with Tucson, and will play an eighth game for the Sidewinders tonight. After his stint with Lancaster, he likely will join the Diamondbacks for their flight to Milwaukee on Monday, where he would platoon with Brent Mayne. He could probably return now, but the Diamondbacks want to figure out what to do with Bobby Estalella, who is currently backing up Mayne.