What happened: Nick Allen continues to produce for the Houston Astros. The infielder has stepped into a more prominent role for the club than initially anticipated this season.

Why it matters: Allen has delivered reliable offensive output since returning from a left hamstring strain in late June. He recently drove in three runs in a victory over the Washington Nationals, helping stabilize the infield rotation.

What to watch: Allen will look to maintain his production at the plate as he logs additional regular-season appearances.