Eickhoff will have his next start pushed back to Friday, Jim Salisbury of CSN Philadelphia reports.
Jake Thompson will be called up to start Thursday, allowing Eickhoff -- whose fastball velocity has dipped a bit this month -- to have an extra day between starts. GM Matt Klentak said Eickhoff is healthy despite the drop in velocity, and believes the righty can still be an effective pitcher with a velocity drop when he is locating and changing speeds.