PITTSBURGH — Gregory Polanco jump-started the Pirates' offense on Saturday with a two-run home run in the bottom of the first inning against Chicago Cubs starter Jake Arrieta.

Since he injured his ankle crashing into a railing in right field at PNC Park on May 29, Polanco’s offensive game has taken a nosedive.

In the 12 games leading up to Saturday’s, he was hitting .157/.204/.157. His last extra base hit had come on May 28 and his decline in outcomes came with a precipitous decline in exit velocity.

Polanco flipped that around on Saturday, driving an 0-1 pitch from Arrieta straight out to the seats atop the Clemente Wall in right field. He hit that one dead on the screws, sending it out at 106 mph.

Polanco also hit a 100 mph ground ball to Addison Russell and a 97.9 mph double...

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