Ben Stokes' father and former Kiwis player Ged is in "a stable condition" but remains in intensive care in Johannesburg, with the England all-rounder due to return to training today.
Stokes, who rushed to the hospital bed after his father was taken ill on Monday evening, could now play in the Boxing Day Test against South Africa, with Ged's condition showing signs of improvement.
Ged Stokes, a former Kiwis forward and assistant coach, had travelled from Christchurch to support his son during the tests.
A statement from the England and Wales Cricket Board said: "He remains in intensive care, but has responded positively to treatment and is now in a stable condition.
"England will train at SuperSport Park today and Ben is expected to play a full part in the practice ahead of the first Test, starting on Boxing Day."