PHOENIX -- D-backs starter Rubby De La Rosa has worked with pitching coach Mike Harkey on his two-seam fastball, the pitch that the right-hander needs to use effectively low in the strike zone to induce ground balls.
He used a heavy dose of two-seamers on Saturday night against the Brewers, and the result was just what Harkey and the D-backs have been looking for: De La Rosa pitched eight scoreless innings in one of his best outings of the season to lead Arizona to a 2-0 win.
"He's probably had more electric stuff velocity-wise, but he's just starting to pitch," D-backs manager Chip Hale said.