Montas to test back against D-backs

Right-hander Frankie Montas (2-1, 1.57 ERA) will take the mound for the A's on Tuesday for a 3:10 p.m. PT tilt against the D-backs at Chase Field. (Available on MLB.TV.) Montas will make his first start since a back issue prevented him from making a scheduled start against the Giants on Friday. Right-hander Luke Weaver (0-3, 11.85 ERA) will start for Arizona.