Cespedes (left hand) will have to wait until at least Thursday to join Triple-A Sacramento, but even that puts him ahead of schedule, since he wasn't originally expected to begin his stint with the River Cats until Friday.
That means the 27-year-old could potentially play three games in Sacramento, rather than two, before coming off the disabled list when eligible Sunday. That is, "if everything goes well today, which I expect it to," Melvin said.
Cespedes took batting practice in Boston on Wednesday afternoon, as his teammates prepared to wrap up a three-game set with the Red Sox.
Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.