White (shoulder) will begin a new rehab assignment Saturday with Triple-A Buffalo, Arden Zwelling of Sportsnet.ca reports.
White was pulled off a previous rehab stint last week due to shoulder fatigue, but it proved to be a minor blip in his recovery from the right elbow injury that has kept him out all year. He'll be stretched out as a starter on his rehab stint, beginning with something close to a 50-pitch outing Saturday for Buffalo.