Berkman, who is recovering from a calf strain, has still not done any strenuous running to test his left leg. His mobility work has, so far, been limited to jogging. Berkman is expected to engage in more running exercises during the team's upcoming trip to Houston.
"They're holding me back," Berkman said. "I feel like I could [run]. Today I had to do some [exercises] that, if I'm not sore tomorrow, will enable me to test it running. I think it's close."
Berkman, who has taken only seven at-bats since April 10, said a Minor League rehab assignment will not be necessary before he comes off the DL.