Washington Nationals pitcher Jordan Zimmermann has been scratched from his scheduled start against the New York Mets because of flu-like symptoms.
Tanner Roark took over as the starting pitcher for Thursday's finale of the opening three-game series. He had been slated to start Washington's home opener Friday against the Atlanta Braves.
Roark, a 27-year-old right-hander, was 7-1 with a 1.51 ERA in five starts and nine relief appearances as a rookie last year, striking out 40 and walking 11 in 53 2-3 innings.
Zimmermann was 19-9 with a 3.25 ERA.