"I threw a little bit off the mound with tennis shoes on to get an angle, and it's definitely an improvement from all week," Crain said. "So I'll take that as a step forward. I'm getting some treatment tomorrow and will throw again on Tuesday and hopefully be able to throw a 'pen [session] on Tuesday."
Throwing that bullpen session could be a deciding factor as to whether the right-hander is placed on the disabled list retroactive to his last appearance -- in Crain's mind, at least.
But even with Crain's recent bout of inactivity, manager Robin Ventura doesn't believe the veteran right-hander is headed to the disabled list.
"He's gotten a pretty good prognosis of what it is," said Ventura of Crain, who was unavailable during Chicago's four-game series against the Yankees, which the clubs split. "It's giving him some time, and hopefully that will do the trick. I don't foresee a DL stint for him."
Crain was out from April 21 to May 14 with a left oblique strain, and he missed time during Spring Training with a right oblique strain.
Philip Humber made his first Minor League rehab start for Triple-A Charlotte on Sunday evening. The right-hander, on the disabled list with a right elbow flexor strain, worked 2 1/3 innings and threw 52 pitches against Gwinnett, throwing 28 strikes. He allowed two runs while striking out three and walking two.