Nats turn to DJ Herz to make MLB debut vs. Mets

(Photo credit: Brett Davis-USA TODAY Sports)
Washington left-hander DJ Herz will make his major league debut Tuesday when he starts for the Nationals against the visiting New York Mets.

Herz, 23, was called up from Triple-A Rochester after right-hander Trevor Williams was scratched and placed on the 15-day injured list on Tuesday. Williams,who is 5-0 with a 2.22 ERA, has a right flexor muscle strain.

Herz is 3-2 with a