Manager John Gibbons said Donaldson (calf) won't return from the disabled list this weekend, Gregor Chisholm of MLB.com reports.
While it was reported earlier that a return for this weekend's series against the Orioles was possible, that has now been ruled out. Gibbons noted that Donaldson didn't suffer any setbacks, but rather the Blue Jays were just overly optimistic about his return date. An updated return date wasn't provided, though it seems the star third baseman will likely be back in action sometime in the next week or so.