What happened: Los Angeles returned to the top of Yahoo MLB’s power rankings, while Arizona entered the top 10. Pete Crow-Armstrong’s recent production strengthened his NL MVP case for Chicago.

Why it matters: The rankings frame the playoff landscape as clubs prepare for the trade deadline. Roster moves could alter both the postseason race and the next league-wide order.

What to watch: Trade activity and Crow-Armstrong’s MVP push will be the key developments to watch.