Jefferson Montero has been cleared by doctors to line up against Everton a week on Saturday in a protective cast after breaking his left hand.
The winger suffered the fracture in a fall against Manchester United at the weekend and was forced to return early from international duty with Ecuador after X-rays revealed the extent of the damage.
Despite fears he might need surgery, Swansea confirmed on Thursday that a specialist has declared the 27-year-old available.
It is a rare piece of good news for manager Bob Bradley, who is yet to record a win since taking over from Francesco Guidolin.