PHOENIX -- The crisp baseball that helped the Rockies to their hot start disappeared when they needed it most Saturday night.
Trevor Story's seventh-inning, two-run homer off D-backs ace Zack Greinke made for a one-run deficit for a Rockies team that had been listless much of the night. But two errors in the bottom of the seventh greased the way for a three-run inning and the Rockies' ninth loss in their last 10 games, 6-2, at Chase Field.
Story, who has defended solidly all year, fielded Rey Fuentes' bouncer, then made a high throw that ticked off the glove of first baseman Mark Reynolds, who was trying to keep his right foot on the bag.
"That's baseball," manager Bud Black said. "Fuentes is fast. Trevor was throwing on the run. Mark knew that it was going to be a bang-bang play. Mark could've jumped, caught the ball, but by jumping his foot probably would've been elevated and that might've been enough to call him safe. That's competition. That's what happens."
Jeff Mathis followed with a drive to deep center. The Rockies' Charlie Blackmon arrived in time at the warning track and leaped, but the ball went over his glove and hit at the base of the wall. Mathis had a triple, and the D-backs led by two.
Ketel Marte followed with a fly to left that should have been an out, but rookie Mike Tauchman dropped it to extend the inning. Mathis scored on what was ruled a sacrifice fly. The play extended what became a three-run inning, with two of the runs unearned.
The miscues took an opportunity from starter Tyler Chatwood, who rebounded from an eight-walk performance at Los Angeles to keep the Rockies close on a night when Grienke was dominant (three hits, eight strikeouts in seven innings). Chatwood gave up seven hits and fanned six, but was charged with six runs (four earned).
Chatwood (6-9) put the onus on himself to bail out his teammates in that case.
"You can't control that," Chatwood said. "You want to try to help your guys out and pick them up. I wasn't able to do that."