It's a hamstring. Marte pulled up short of second base on an extra-base hit and it was clear he'd hurt his left leg.

Arizona second baseman Ketel Marte was removed from the Washington game in the top of the first inning Friday after suffering an apparent hamstring injury while running out a double.

Arizona Diamondbacks second basemen Ketel Marte left Friday night's game against the Washington Nationals in the first inning after sustaining an apparent injury while running the bases. Marte hit a long ball to the wall in center field and as he rounded first base and headed to second he started to stutter step.