During the 18th over of the match on Friday, 24 May, Fernando was fielding in the covers when he put in a slide to field the ball from a shot from Faf du Plessis and landed awkwardly on his ankle.
He appeared in significant pain as soon as the incident took place, and a stretcher was needed to take him off the field.
Reports later said he underwent a scan, which revealed a minor ankle injury. He was strapped and iced and is expected to make a recovery.
Fernando had looked in great form heading into this warm-up match, making 74 in an ODI against Scotland, so an injury to him could affect Sri Lanka's chances.
More to follow...