Off-spinner Washington Sundar was on Monday ruled out of the three-match T20 International series against the West Indies due to a hamstring injury, adding to his never-ending woes. Washington recently made an impressive comeback in the preceding three-match ODI series against the West Indies, and he was looking to build on his steady all-round show in the one-dayers, starting on Wednesday. "Washington has suffered a hamstring strain and hence didn't practice on the day. It seems there is a possibility that he would miss the entire series with three T20 matches in just five days," a veteran BCCI official told PTI on the condition of anonymity.