PITTSBURGH — The Arizona Diamondbacks’ 8-7 extra-inning win over the Pittsburgh Pirates Tuesday night was a nail-biter. More importantly, it continued to raise one question: Is Paul Sewald still the right person to close games? The D-Backs looked poised to take the win in regulation, leading the Pirates 6-0 in the bottom of the eighth … Continue reading Diamondbacks escape with win, but Paul Sewald concerns remain