Duran took a comebacker off the outer part of his right ankle in the ninth inning of Philly’s 6-2 win at Washington on Friday night. After the game, the Phillies said X-rays on the burly right-hander were negative. He will be evaluated further on Saturday.

Duran, 27, was acquired from the Minnesota Twins prior to the July 31 trade deadline. He has been electric in his two weeks with the Phillies, throwing four scoreless innings with four strikeouts. For the season, Duran has a 1.86 ERA with 20 saves in 53 1/3 innings.