DeGrom (back) will throw a flat ground session Saturday and bullpen session Sunday and is expected to pitch Tuesday against the Phillies, Adam Rubin of ESPN.com reports.
DeGrom is repeating the same rehab activities he did on Thursday and Friday, and it appears he will be back in the rotation by next week barring any setbacks. The 27-year-old gave up just one run in six innings in his first start of the year and will look to get back into the swing of things against a struggling Philadelphia offense Tuesday.