Christian Walker drives in 3, leads Diamondbacks over Pirates
Corbin Carroll homered and Christian Walker drove in three runs Sunday to help the visiting Arizona Diamondbacks down the Pittsburgh Pirates 8-3 to take two of three in their weekend series.
Pavin Smith and Ketel Marte each added an RBI single for the Diamondbacks, who have won seven of nine.
Arizona starter Merrill Kelly (5-3) allowed three runs (two earned) and three hits in five innings, with two walks and four strik